Number & Math Tools
A complete set of calculators for percentages, finance, conversions, and everyday math. All tools run instantly in your browser – no login, no API keys needed.
All Math Tools in One Place
- ✨ 16 focused number & math calculators
- ⚡ Fast, accurate, and easy to use
- 📊 Great for students, finance & daily use
Browse Number & Math Tools
Percentage Calculator
Find percentage values, percentage increase/decrease, and more.
Discount Calculator
Calculate sale prices, discount percentages, and savings.
Average Calculator
Compute mean (average) from a list of numbers quickly.
Grade Calculator
Calculate final grades based on assignments and weights.
BMI Calculator
Check your Body Mass Index using height and weight.
Age Calculator
Find exact age in years, months, and days from a date of birth.
Loan Calculator
Calculate monthly payments and total interest for loans.
Simple Interest Calculator
Compute simple interest on principal, rate, and time.
Compound Interest Calculator
See how your money grows with compound interest.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
Length Converter
Convert between meters, feet, inches, kilometers, and more.
Weight Converter
Convert between kilograms, pounds, grams, and other units.
Time Calculator
Add or subtract hours, minutes, and seconds easily.
Date Difference Calculator
Find the exact difference between two dates.
Unit Converter
Convert between many measurement units in one place.
All Calculators (One Page)
View and use multiple calculators together on a single page.