Free Online
Calculators

Instant calculations for everyday life. No sign-up, no install, works on any device.

⭐ Most Popular

Percentage Calculator

Discounts, tips, grade percentages

10M+ searches/month

Body Mass Index with categories

8M+ searches/month

Currency Converter

USD, EUR, XOF, GBP and more

5M+ searches/month

Split bills and calculate tips

5M+ searches/month

Exact age in years, months, days

6M+ searches/month

Calorie Calculator

Daily calorie needs by activity

4M+ searches/month

Pregnancy Calculator

Due date and pregnancy week

2M+ searches/month

Salary Calculator

Hourly to annual conversion

1.5M+ searches/month

💰 Finance & Math

Loan Calculator

Monthly payments and interest

3M+ searches/month

Discount Calculator

Sale price after any discount

3M+ searches/month

Compound Interest

Investment and savings growth

800K+ searches/month

Fuel Cost Calculator

Trip cost and consumption

300K+ searches/month

🎓 School & Health

Grade Calculator

Weighted average and GPA

2M+ searches/month

Letter grades on 4.0 scale

1M+ searches/month

Sleep Calculator

Best bedtime by sleep cycles

500K+ searches/month

🔄 Unit Converters

Weight Converter

Kg to lbs, grams to ounces

1M+ searches/month

Temperature Converter

Celsius, Fahrenheit, Kelvin

800K+ searches/month

Pace Calculator

Running pace and finish time

400K+ searches/month