Calculators
Money, dates, health and grades. Each page explains the formula behind its answer, so you can check it.
Every calculators tool
18 totalPercentage Calculator
Any percentage calculation.
Age Calculator
Exact age in years, months, days.
BMI Calculator
Body mass index and category.
Loan / EMI Calculator
Monthly payment and interest.
Tip Calculator
Split a bill and add a tip.
Date Difference Calculator
Days between two dates.
Discount Calculator
Work out sale prices and savings.
Sales Tax Calculator
Add or remove sales tax and VAT.
GPA Calculator
Calculate your grade point average.
Grade Calculator
Calculate a course grade.
Calorie / TDEE Calculator
Estimate your daily calorie needs.
Mortgage Calculator
Estimate home loan payments.
Compound Interest Calculator
See how savings grow.
Time Duration Calculator
Time between two times.
Sleep Calculator
Bedtimes and wake times by sleep cycle.
Pace Calculator
Calculate running pace and time.
Salary to Hourly Calculator
Convert salary to hourly.
Paycheck Calculator
Estimate take-home pay.
Other categories
117 tools in allImages
HEIC, WebP, JPG and PNG in any direction. Compress, resize and strip EXIF.
Documents
Shrink, merge and split PDFs without uploading a contract.
Convert
Move data between JSON, CSV, YAML, XML, Markdown and more.
Developer
Format, decode, hash and test without pasting into a stranger.
Text
Count, clean, compare and reshape text at speed.
Generators
Passwords, QR codes, UUIDs and test data, made locally.
Colour and design
Palettes, gradients, shadows and contrast checks.
Time
Timers, countdowns and working-day arithmetic.
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