Free Calculators
Skip the mental math.
Get your answer in seconds.
No install, no sign-up — 20 free calculators you can use right in your browser
Every calculation runs entirely in your browser — nothing is ever sent to a server or stored anywhere.
🔒 Your inputs never leave your browser
Money
Compound Interest Calculator
See how your monthly savings could grow over time.
Currency Converter
Convert between major currencies using live exchange rates.
Discount Calculator
Calculate the final price after stacked discounts.
Real Hourly Wage Calculator
Find out what your time is really worth per hour, commute included.
Health & Fitness
BMI Calculator
Enter your height and weight to check your BMI and ideal weight.
TDEE Calculator
Find out how many calories your body needs per day.
Water Intake Calculator
See how much water you should drink today.
Pregnancy Due Date Calculator
Estimate your due date and current week of pregnancy.
1RM Calculator
Estimate your one-rep max from a recent lift.
Exercise Calorie Calculator
Find out how many calories your workout burned.
Caffeine Intake Calculator
Track today's caffeine against the recommended daily limit.
Pets & Relationships
Pet Age Calculator
Convert your dog or cat's age into human years.
Relationship Day Counter
See how many days you've been together and what's next.
Age Difference Calculator
Find the exact age gap between two people.
Zodiac Sign Calculator
Find your Western zodiac sign and Chinese zodiac animal.
Name Compatibility Calculator
A fun, lighthearted compatibility score for two names.
Everyday
Bill Split Calculator
Split a bill evenly and round up to a clean amount.
Oven Temperature Converter
Convert between °C, °F, and Gas Mark for any recipe.
Just for Fun