Calculators and Converters
Choose from a multitude of free calculators and converters in the areas of finance, health, cooking, math and science for everyday, general use.
Financial Calculators
- Compound Interest Calculator
- Compound Interest (Daily)
- Amortization Calculator
- APY Calculator
- CAGR Calculator
- Car Loan Calculator
- Credit Card Repayment
- Currency Converter
- Hourly to Salary Calculator
- Interest Rate Calculator
- IRR Calculator
- Loan Calculator
- Loan Payoff Calculator
- Margin Calculator
- Price Per Square Foot
- Savings Calculators
- Savings Goal Calculators
- Simple Interest Calculator
- Time Card Calculator
Featured Conversions
- Grams to ounces
- Grams to pounds
- Kilos to stones & pounds
- Kilos to pounds
- Stones to pounds
- Centimeters to inches
- Centimeters to feet & inches
- Cubic yards to tons
- Gallons to pounds
- Hertz to seconds
- Inch-pounds to ft-lb
- Inches to centimeters
- Meters to feet & inches
- Millimeters to inches
- Newton-Meters to ft lb
- Ounces and pounds
- Square feet to cubic feet
- Square feet to cubic yards
Health and Math
- BMI Calculator
- BMR Calculator
- Pregnancy Calculator
- Sobriety Calculator
- Steps to Miles Calculator
- WHR Calculator
- Age Calculator
- Birthday Calculator
- Chronological Age
- Cubic Feet Calculator
- Cubic Meters Calculator
- Cubic Yards Calculator
- Date Calculator
- Days & Time Between Dates
- Days Until...
- Decimal to Fraction Calculator
- Density Calculator
- Fractions Calculators
- Hex to Decimal Converters
- LED Savings Calculator
- Mulch Calculator
- Percentage Calculator
- Percentage Change
- Roman Numerals Converter
- Significant Figures Calculator
- Square Footage Calculator
Unit Conversions
- Acceleration Converter
- Area Converter
- Cooking Converter
- Data Storage Converter
- Energy Converter
- Fuel Economy Calculator
- Height Converter
- Length and Distance Converter
- Mass & Weight Converter
- Power Converter
- Pressure Converter
- Time Converter
- Velocity Converter
- Volume Converter
- Water Weight Calculator
- Weight Converter
- Weight To Volume Converter
You have to hand it to those Romans; for an empire that crumbled away at least 1,500 years ago they've left us with a heck of a legacy. And one of 'the things that the Romans have done for us' is to leave us a numbering system that, though occasionally mystifying, is still proving remarkably useful...
How to Calculate Square Footage
Whether you're shopping for carpet, or planning a landscaping or home improvement project, one essential concept is calculating square footage.Having to work out a square footage calculation might give you panicky flashbacks of being late for school! But don't worry, our guide will show you to calcu...
Compound Interest Formula - Explained
An in-depth look at the compound interest formula as we break down how to calculate compound interest. The concept of compound interest is that interest is added back to the principal sum so that interest is earned on that added interest during the next compounding period.
Whether you're ordering clothes online, monitoring your weight, or designing a bespoke bucket chair for your space-shuttle to the moon (look, the world is on fire; it's OK to have a plan B), you need to be able to measure your body accurately. Here's how to get the digits for your waist.
Calculator suggestions
I love hearing your feedback. So, please feel free to suggest any calculators or converters that you feel would be a useful addition to this website. Or, if you have any ideas for extra features, then please suggest those also. You can contact me here.
