๏ผ Percentage Calculator
Calculate X% of Y, what percent X is of Y, and the percent change between two values โ with step-by-step working shown.
๐งฎCalculators
Free online calculators for everyday math, finance and health โ each one also available as a machine-readable paid API for AI agents.
๐ท๏ธ Discount Calculator
Calculate the final sale price and the amount saved for any price and percent-off discount, with the working shown.
๐ฝ๏ธ Tip Calculator
Calculate the tip for any bill, the grand total, and how much each person pays when splitting. Defaults to a 15% tip.
๐งพ VAT Calculator
Add VAT to a net amount or remove VAT from a gross amount. Standard VAT rates for 36 countries are built in, or override with any custom rate.
โ๏ธ BMI Calculator
Calculate Body Mass Index from weight (kg) and height (cm), with the WHO weight category and the healthy BMI weight range for your height.
๐ Date Difference Calculator
Count the total days between two dates, plus the breakdown in weeks and days and in calendar years, months and days.
๐ Age Calculator
Calculate a person's exact age in calendar years, months and days from their date of birth, plus total days lived. Reference date defaults to today (UTC).
๐ฆ Loan Payment Calculator
Calculate the fixed monthly payment for a loan from its principal, annual interest rate and term in years, plus total repaid and total interest (annuity formula).
๐ฑ Compound Interest Calculator
Project the future value of a deposit with compound interest: choose annual, semi-annual, quarterly, monthly, weekly or daily compounding and see total interest earned.
โฝ Fuel Cost Calculator
Calculate the liters of fuel a trip needs and its total cost from distance, consumption (L/100 km) and price per liter โ with optional cost splitting between passengers.
๐ Reading Time Calculator
Estimate reading time from a word count at any reading speed. Defaults to 200 words per minute โ the typical silent-reading speed for adults.