All tools (63)
Calculators, converters and reference charts for living and working in Japan. Tap a tool to open it.
Online Timer
Countdown timer with alarm. Set minutes and seconds and go.
Time & TimersUnit Converter
Convert length, weight and temperature between metric and imperial.
ConvertersPercentage Calculator
Percent of, what percent, and discount calculations.
CalculatorsCharacter and Word Counter
Live character, word and line count.
Text ToolsDate Difference Calculator
Age on any date, or days between two dates.
Dates & AgePassword Generator
Strong random passwords, generated locally.
Security & UtilitiesBMI Calculator (Japanese / Asian Standard)
BMI with the Japanese classification used on health checks in Japan.
HealthJapan Consumption Tax Calculator
Tax-included and tax-excluded prices in Japan at 10% or 8%.
Money & TaxQR Code Generator
Make a QR code from a URL or text and download it.
Security & UtilitiesSplit the Bill Calculator (Warikan)
Per-person share of a bill, with an option for some people to pay more.
Money & TaxJapanese Era Converter
Reiwa, Heisei and Showa years to western years and back.
Dates & AgeOnline Stopwatch
Online stopwatch with lap times.
Time & TimersFull-Width / Half-Width and Kana Converter
Full-width ⇄ half-width, katakana ⇄ hiragana, upper ⇄ lower case.
Text ToolsColor Code Converter
Convert colors between HEX, RGB and HSL with a preview.
ConvertersLoan Payment Calculator
Monthly payment and total interest from amount, rate and term.
Money & TaxElectricity Cost Calculator
Running cost of an appliance from its wattage and hours of use.
Money & TaxRandom Name Picker
Pick one or more entries at random from a list.
Everyday Life & Random PicksNumber Base Converter
Convert between binary, octal, decimal and hex.
Developer & ITOnline Notepad
Simple browser notepad with autosave, no login.
Text ToolsImage Resizer and Compressor
Resize and compress images in the browser, no upload.
Image ToolsDaily Calorie Calculator
BMR and daily calorie burn, with a target intake from your goal weight.
HealthWorld Clock and Japan Time Difference
Live clocks for 16 cities and their difference from Japan time.
Time & TimersJSON Formatter
Format, validate and minify JSON.
Developer & ITByte Converter
Convert between B, KB, MB, GB and TB.
ConvertersMeeting Cost Calculator
Staff cost of a meeting from attendees, hourly rate and length.
Money & TaxSalary Converter (Annual, Monthly, Daily, Hourly)
Convert annual, monthly, daily and hourly pay in yen, with your own working pattern.
ConvertersJapan Overtime Pay Calculator
Overtime, late-night and holiday premium pay under Japanese law, itemized.
Money & TaxMeeting Agenda Timer
Set minutes per agenda item and run the meeting on a countdown.
Time & TimersText Diff Checker
Highlight the differences between two texts.
Developer & ITJapan Paid Leave Calculator
Statutory paid leave days in Japan from your start date, for full-time and part-time work.
Dates & AgeFuel Cost Calculator
Fuel cost from distance and km/L, with car and fuel presets.
Everyday Life & Random PicksPomodoro Timer
Timer for the Pomodoro technique: 25 minutes focus, 5 minutes rest.
Time & TimersZodiac Sign and Chinese Zodiac Calculator (Japanese Eto)
Western star sign and Japanese zodiac animal from your birthday.
Everyday Life & Random PicksDaily Water Intake Calculator
Daily water need from weight and activity, in ml, glasses and bottles.
HealthDice Roller
Virtual dice, 1 to 10 at a time, with totals and history.
Everyday Life & Random PicksRandom Team Generator
Shuffle a list of names into random teams or groups.
Everyday Life & Random PicksDays Until Calculator
How many days until a date, with week and month equivalents.
Dates & AgeDay of the Week Calculator
The weekday of any date, and its distance from today.
Dates & AgeCompound Interest Calculator
Future value of savings or monthly investments at a given return.
Money & TaxRecipe Scaler
Rescale ingredient amounts for a different number of servings.
Everyday Life & Random PicksJapan Salary Calculator (Take-Home Pay)
Net salary in Japan after tax and social insurance, with a full breakdown.
Money & TaxJapanese Shoe Size Converter
JP centimeter shoe sizes to US, EU and UK, for men, women and kids.
ConvertersAge Calculator
Exact age, days since birth and days to the next birthday.
Dates & AgeDiscount Calculator (% off and Wari)
Sale price from % off or 割引, with the tax-included total.
Money & TaxLifetime Earnings Calculator
Projected total salary until retirement from pay and raise rate.
Money & TaxCost of Education in Japan Calculator
Education costs in Japan from kindergarten to university, public or private.
Money & TaxRomaji Converter (Hiragana, Katakana ⇄ Romaji)
Hiragana and katakana to romaji and back, Hepburn or Kunrei-shiki.
Text ToolsJapanese Room Size Converter (Jo, Tsubo, m², sq ft)
Jo, tsubo, m² and sq ft for Japanese apartment listings, with regional tatami sizes.
ConvertersBMR and TDEE Calculator
BMR, TDEE, calorie targets and macros in grams.
HealthJapanese Laundry Symbols Guide
What the symbols on Japanese clothing care labels mean, with drawings.
Everyday Life & Random PicksAir Conditioner Cost Calculator (Japan)
Air conditioner running cost in Japan from room size and settings.
Everyday Life & Random PicksJapan Dependent Spouse Income Limit Calculator
What crossing Japan's part-time income limits does to household take-home pay.
Money & TaxSalt and Sodium Intake Calculator (Japanese Foods)
Salt from Japanese seasonings and foods versus daily targets.
HealthLaundry Drying Time Calculator
Drying time for laundry by garment, method, season and humidity.
Everyday Life & Random PicksJapanese Clothing Size Chart
Japanese S/M/L, 号 and kids' sizes matched to US, EU and UK, with cm measurements.
ConvertersScreen Size in Centimeters
Screen sizes in inches converted to width and height in cm.
ConvertersJapanese Recipe Measurement Converter
Japanese spoons and 200 ml cups to grams, ml and US cups, for 30 ingredients.
ConvertersPet Age in Human Years
Dog, cat, rabbit and hamster age in human years, with life stage.
Dates & AgeJapanese Paper and Envelope Sizes
Japanese paper, envelope, card and photo sizes in mm, cm and inches.
ConvertersBingo Card Generator
Random 5×5 bingo cards with tap-to-punch squares.
Everyday Life & Random PicksBingo Number Caller
Random bingo number caller with voice, board and full-screen mode.
Everyday Life & Random PicksCoin Flip
Flip a fair coin with custom labels, one to ten coins at a time.
Everyday Life & Random PicksSpin the Wheel
A spinning wheel for any list of options.
Everyday Life & Random Picks