Everyday life 159
Cooking, parenting, travel, cars and home, loans and savings, date math — calculators for daily life
Date & time 10
- Days Until & Days Since CalculatorCount how many days until an exam, trip or birthday, or the days since a date. Shows 100 days from today, day 1000, anniversary dates and weekdays left.
- Date Calculator — Days Between DatesCount the days between two dates in weeks, months and weekdays, or add days to a date to find what date is 100 days from today, with business-day counting.
- Age Calculator in Years, Months & DaysFind your exact age in years, months and days from your date of birth, today or on any date, plus how many days old you are and days until your next birthday.
- World Time ConverterCompare the time across cities and find a meeting time that works
- StopwatchA stopwatch with lap times
- Pomodoro TimerA focus timer that alternates 25 minutes of work with 5-minute breaks
- Millisecond Clock for Ticketing (Server-Synced)Standard time to the millisecond, corrected with this site's server, with a countdown and alert beeps for ticket sales and registrations, and how far your device clock is off
- Business Days CalculatorCount working days between two dates or find the date N business days away, skipping weekends and holidays
- Week Number CalculatorWhat week of the year is it? Convert a date to its week number and a week number to its dates
- Time CalculatorAdd and subtract hours, minutes and seconds, convert hh:mm to decimal hours, and find the time X hours from now
Loans, savings & home 20
- Home Affordability CalculatorEstimate how much house you can afford from income, debts and down payment
- Rent Affordability CalculatorHow much rent fits your income
- Rent vs Buy CalculatorCompare the total cost of renting and buying over time
- Refinance Break-Even CalculatorHow many months it takes for a refinance to pay back its closing costs
- Auto Loan CalculatorMonthly car payment and total interest from price, down payment, rate and term
- Credit Card Payoff CalculatorHow long it takes to clear a card balance and what it costs in interest
- Student Loan Repayment CalculatorMonthly payment, total interest and payoff date for student loans
- Compound Interest CalculatorSee how a starting amount and regular deposits grow with compound interest
- 401(k) CalculatorProject your 401(k) balance at retirement with your contributions and employer match
- Savings Goal CalculatorHow much to save each month to reach a target, or when you'll get there
- Loan Calculator — payment and interestMonthly payment and total interest for a mortgage or personal loan. Compare level payment, equal principal and interest-only, and save the amortization schedule
- Savings & Deposit Interest CalculatorWhat a deposit or monthly savings plan pays at maturity, with simple or compound interest and tax
- Mortgage CalculatorMonthly payment from home price, down payment and rate, split into principal and interest
- Average Down Calculator (Average Cost)New average price after buying more, and how much to buy to reach a target average
- Return & Profit CalculatorProfit and percentage return from buy and sell prices, annualised return, and the gain needed to recover a loss
- Prorated Rent CalculatorRent for a partial month from the move-in or move-out date, by the day
- Rental Yield CalculatorGross and net rental yield, cap rate and cash-on-cash return for a rental property
- Loan Prepayment Penalty CalculatorThe fee for paying a loan off early and the interest it saves
- Debt-to-Income (DTI) CalculatorDebt service ratio, debt-to-income and loan-to-value from your income and loans
- Rent Split CalculatorSplit rent between housemates by room size and extras, and divide the bills
Everyday 18
- Fuel Cost CalculatorWhat a trip costs in fuel, from distance, fuel economy and fuel price
- Fuel Economy CalculatorWork out your real fuel economy from the fuel you added and the distance driven
- Sleep CalculatorWhen to go to bed for your wake-up time, or when to wake if you sleep now, based on sleep cycles
- BMI Calculator with BMR & TDEEFree BMI calculator with WHO and Asian cut-offs, plus a BMR calculator (Mifflin–St Jeor and Harris–Benedict) and TDEE estimate of calories burned per day.
- Height & Weight ConverterConvert height between cm and feet/inches, and weight between kg, lb and stone
- Clothing & Shoe Size ConverterCompare clothing and shoe sizes across US, UK, EU, Korea and Japan
- Feedback, Requests & QuestionsSend a question, a request for a new tool or feature, or a bug report to the person who runs this site. No sign-in needed; leave an email if you want a reply
- Running Pace CalculatorWork out pace, time or distance from the other two, with split tables
- One-Rep Max (1RM) CalculatorEstimate your one-rep max from weight and reps, with a percentage chart and plate maths
- Exercise Calorie CalculatorEstimate calories burned from the activity, duration and your weight
- Simple Budget TrackerLog income and spending and see monthly and category totals, stored only on this device
- Daily Water Intake CalculatorEstimate how much water to drink from your weight and activity, and tally today's glasses
- Travel Packing List GeneratorPick the trip type and length and get a packing checklist you can tick off
- Dog & Cat Age CalculatorConvert a dog's or cat's age to human years by size and life stage
- To-Do ListA simple checklist for tasks, stored only on this device
- Habit TrackerTick off daily habits and watch your streaks, stored only on this device
- Moving ChecklistEnter your moving date to get the tasks from a month before to the week after, in date order
- Moving Box & Truck Size CalculatorEstimate how many boxes and what size of truck your move needs
Travel 10
- Tip CalculatorTip, total and each person's share from the bill, tip percentage and number of people
- Currency Converter with Your Own RateConvert amounts with a rate you type in and print a price cheat sheet for your trip
- Travel Budget CalculatorTotal trip cost and cost per person and per day from flights, lodging, food and other items
- Group Trip Expense SplitterEnter who paid for what and get who owes whom, in as few payments as possible
- Schengen 90/180 CalculatorEnter your entry and exit dates to see the days used in any 180-day period and the days you have left
- Luggage Size CalculatorConvert suitcase sizes between inches and cm, get linear dimensions and volume, and compare with a size limit
- Travel Itinerary MakerLay out your trip day by day with times, places and costs, then print it
- Plug Types & Voltage by CountryLook up a country's plug types, voltage and frequency and see whether you need an adapter
- Flight Distance CalculatorGreat-circle distance between two airports, with an approximate flight time
- Sunrise, Sunset & Golden Hour CalculatorSunrise, sunset, day length, twilight and golden hour for a city or coordinates on any date
Cars & transport 12
- Tire Size CalculatorCompare two tyre sizes: diameter, circumference and how much the speedometer reading changes
- RPM & Gear Speed CalculatorSpeed in each gear and engine RPM at any speed from gear ratios, final drive and tyre size
- Drive Time CalculatorTravel time and arrival time from distance and average speed, or solve for speed or distance
- Bike Size CalculatorAn approximate frame size range for road, mountain and hybrid bikes from your height and inseam
- Car Lease CalculatorMonthly lease payment and total cost from price, residual value, rate and term
- Lease vs Buy Car CalculatorCompare the total cost of paying cash, financing and leasing a car over the same period
- Car Depreciation CalculatorA year-by-year estimate of a car's remaining value from its price and a depreciation rate
- Car Cost of Ownership CalculatorMonthly and per-kilometre cost of running a car, from fuel, insurance, maintenance, parking and depreciation
- EV Charging Time & Cost CalculatorHow long a charge takes from battery size and charger power, and what it costs at your price per kWh
- Electric vs Gas Car Cost CalculatorCompare energy costs of an electric and a petrol car and see how long the price difference takes to pay back
- Parking Fee CalculatorWork out a parking charge from the car park's rates and your entry and exit times
- Car Log (Fuel & Maintenance)Record fill-ups and services to track fuel economy, cost per kilometre and what is due next
Home improvement 8
- Square Footage CalculatorArea of a room or lot in square feet from its dimensions
- Concrete CalculatorVolume of concrete and number of bags for slabs, footings and columns
- Paint CalculatorHow much paint you need for your walls, from area, coats and coverage
- Tile & Flooring CalculatorHow many tiles, planks or boxes you need for a floor, with waste allowance
- Mulch, Gravel & Soil CalculatorVolume and weight of mulch, gravel or soil for an area and depth
- Lumber Calculator (Board Feet)Board feet, cost, and the actual size of nominal lumber like 2×4
- Air Conditioner Size CalculatorThe cooling capacity a room needs, in BTU per hour and kW, from its area and conditions
- Wallpaper CalculatorHow many rolls of wallpaper a room needs, from wall sizes, roll size and pattern repeat
Cooking 18
- Cooking TimerPick the food and how you like it — soft or hard-boiled eggs, pasta, steak — and the timer is set for you
- Cooking Measurement ConverterConvert cups, tablespoons and ounces to grams and milliliters, by ingredient
- Baker's Percentage CalculatorIngredient percentages against flour, dough hydration, and the same recipe rescaled to any dough weight
- Sourdough CalculatorStarter feeding amounts, levain build and the true hydration of your sourdough recipe
- Pizza Dough CalculatorFlour, water, salt and yeast for the number and size of pizzas you want
- Yeast ConverterConvert between fresh, active dry and instant yeast amounts
- Recipe ScalerPaste a recipe's ingredients, change the servings and get every amount recalculated
- Cake Pan Size ConverterCompare the recipe's pan with yours and get the factor to scale the ingredients by
- Oven to Air Fryer ConverterConvert an oven recipe's temperature and time for an air fryer
- Rice to Water Ratio CalculatorHow much water for your rice, by type of rice and how you cook it, and how much rice per person
- Coffee to Water Ratio CalculatorCoffee and water amounts for the ratio, brew method and number of cups you choose
- Brine & Salt Concentration CalculatorThe salt you need for a brine of a given strength, or the strength of the brine you have
- Simple Syrup & Fruit Syrup Ratio CalculatorSugar and water for a syrup of a given strength, and sugar for a weight of fruit
- Mixed Drink ABV CalculatorThe alcohol strength of a mixed drink, and how much mixer or water gives the strength you want
- Macro CalculatorSplit your daily calories into grams of carbs, protein and fat
- Party Food Quantity CalculatorHow much meat, sides and drinks to buy for the number of guests
- Weekly Meal PlannerFill in the week's meals, get a shopping list, and print both
- World DishesSignature dishes from 20 countries with ingredients and steps, serving scaling and a cook mode
Parenting 23
- Child Growth Percentile CalculatorSee where a child's height, weight and head circumference fall among children of the same age
- Baby Age & Milestone Dates CalculatorA baby's age in months, weeks and days, plus dates like 100 days and first birthday
- Due Date & Pregnancy Week CalculatorEstimated due date and how many weeks pregnant you are today, from your last period
- Baby Feeding, Sleep & Diaper LogLog feeds, sleep and diapers with one tap and see the time since the last feed. Stored on this device only
- Baby Food Batch & Portion CalculatorRice-to-water ratios for porridge and how many freezer cubes a batch makes
- Kids' Shoe & Clothing Size CalculatorFind a child's shoe and clothing size in US, UK, EU and Korean sizing from foot length and height
- Name Picker TournamentEnter candidate names and choose between pairs until one favourite is left
- Baby Cost CalculatorAdd up what a baby's first year will cost, item by item
- Reward Chart MakerMake a printable sticker reward chart with your child's goals
- Chore Chart & Routine Chart MakerBuild a printable chore chart or daily routine for kids, or tick it off on screen
- Visual Timer for KidsA timer where the remaining time shrinks as a coloured wedge, for brushing teeth, tidy-up or screen time
- Printable Mazes & Dot-to-DotsGenerate mazes and dot-to-dot pages to print
- School Year CalculatorThe school entry and graduation years and current grade for a birth date
- Child Height PredictorAn estimate of a child's adult height from the parents' heights
- Chinese Gender PredictorA just-for-fun chart that guesses boy or girl from the mother's lunar age and the lunar month of conception
- Hospital Bag & Newborn ChecklistTick off what to pack for the birth and what to have ready for the baby, and print your own list
- Ovulation CalculatorEstimated ovulation day and fertile window from your last period and cycle length, shown on a calendar
- Period CalculatorEnter your recent period start dates to see your average cycle and the next expected dates
- Contraction TimerTap to record how long each contraction lasts and how far apart they are
- Adjusted Age CalculatorCorrected age for a baby born early, from the birth date and the original due date
- Photo to Coloring Page ConverterTurn a photo or drawing into a printable coloring page with clean outlines, then print it or save it as a PDF
- Dot-to-Dot Puzzle MakerTurn a picture or a built-in shape into a numbered connect-the-dots puzzle to print, with the finished outline as the answer
- Maze Generator (printable mazes for kids)Make mazes by size, difficulty and shape, print them or save a PDF with the solution path on a separate page
Other tools 3
Also on this shelf 37
- MetronomeA precise metronome with tempo, time signature and accents
- Sound Level MeterSee how loud it is around you through the microphone. Readings are relative, not calibrated decibels
- Classroom OrigamiStep-by-step origami to put on the classroom screen and fold together
- Math Worksheet GeneratorMake printable addition, subtraction, multiplication and division practice sheets
- Handwriting Tracing WorksheetsMake printable tracing sheets for letters, numbers, names and words
- White Screen LightFill the screen with bright white or any colour to use it as a light or tracing pad
- ID & Passport Photo MakerCrop a photo to an ID or passport size and lay out several on one print sheet
- Instrument TunerListens through your microphone and shows the note and how sharp or flat it is — for guitar, ukulele, violin and more
- Bill SplitterList who paid what and get the fewest transfers that settle everyone up
- Remove Photo Location & EXIFSee what location and device data a photo carries, and strip it out
- Screen Measuring ToolsUse your screen as a ruler. Calibrate once with a card or coin and measure at real size
- Online Ruler — actual size cm and inchAn actual size cm, mm and inch ruler for your phone or monitor. Calibrate with a bank card or coin, measure between two cursors and add up long objects
- Actual Size PreviewEnter width × height and see it at real size on your screen, handy before you buy online
- Bubble LevelLay your phone down to see the tilt
- Bolt & Nut Size FinderHold a bolt against the screen to find its size (M5, M6, 1/4-20…), length, and the hex key or wrench that fits
- Pipe & Fitting Size FinderMeasure a pipe's outside diameter and get its nominal size (1/2 in, DN15, 15A…)
- Ring Size FinderPlace a ring you own on the screen, match the circle, and get its US, UK, EU and Asian size
- Coin Battery IdentifierHold a coin or button cell against the screen to tell CR2032 from CR2025 and other sizes
- Percentage & Percent Change CalculatorFind what percent of a number is, X as a percent of Y, percent increase or decrease, and a price after a discount, all on one screen as you type
- Multi-Timer for the LabRun several named timers at once for incubations and protocol steps
- Discount CalculatorSale price from a percent off, or the percent off from two prices
- Proportion & Ratio CalculatorSolve a : b = c : x, simplify ratios and split an amount by a ratio
- Cross Stitch Pattern Maker from PhotoTurn a photo or drawing into a cross-stitch chart sized to your Aida count, with floss colours, symbols, stitch counts, skein estimates and multi-page printing
- Diamond Painting Pattern MakerTurn a photo into a diamond painting chart with round or square drills, canvas size in cm, colour limit, symbol grid, drill counts per colour with spare and printing
- Knitting Colourwork Chart MakerTurn a photo or drawing into a knitting or crochet colourwork chart with cells shaped by your gauge, a colour limit, row numbers with reading-direction arrows and a yarn estimate per colour
- Copywork Sheets (handwriting practice)Turn a poem, a classic passage or any text you paste into printable copywork pages to trace or copy by hand, on ruled lines, squares or vertical columns, in the font you choose
- What Should I Eat? Meal PickerRandom lunch or dinner idea with filters for cuisine and mood
- Printable Calendar MakerMake monthly or yearly calendars to print
- Invitation & Card MakerMake party invitations and thank-you cards and save them as images
- Drill Size Chart & Tap Drill ChartNumber, letter, fractional and metric drill sizes in inches and mm, with tap drill sizes for common threads
- Unit Price CalculatorCompare products of different sizes by price per unit, per 100 g or per litre to see which is cheaper
- Picture Addition & Subtraction WorksheetsMake counting, addition and subtraction problems with pictures (apples, candies, stars…) for preschool and first grade, with answer keys, to print or save as PDF
- Perler Bead Pattern Maker (Hama, Lego Mosaic)Turn a photo or drawing into a bead pattern on a grid, matched to real bead colours, with a legend and bead counts to print
- Friendship Bracelet Pattern GeneratorPick thread colours and a design to get a knot chart with forward and backward knot arrows, then print it
- Base Ten Blocks — Carrying and Borrowing VisualizedEnter two numbers and watch hundreds, tens and ones blocks regroup step by step to explain carrying in addition and borrowing in subtraction, plus arrays for multiplication and sharing for division
- Fraction Visualizer — Why Flip and Multiply?Enter any fraction operation and see it explained with moving pictures: common denominators, the area model for multiplication, and why dividing means multiplying by the reciprocal
- Tangram Puzzles with SolutionsChoose from more than 80 tangram figures (animals, people, objects), see the seven-piece solution step by step, and print puzzle cards with answers