Popup calculator Copy a link to this page Print this page Email a link to this page Scroll up to form What does this mean? Remove this row Open/Close content Close content Return to content Copy to clipboard
Add to phone 📲

Free Calculators and Converters

An extensive collection of free, highly-rated online calculators and converters covering finance, construction, education, health, cooking and math for everyday use.

Quick Search: 

Financial Calculators

A suite of financial calculators to assist with projections for savings, investments, loans, mortgages and small business calculations.

Featured Conversions

A series of individual converters for popular weight, length, height, area and energy units.


A small collection of health calculators, from BMI and BMR through to pregnancy and exercise.

Handy and Fun

A collection of handy calculators for DIY construction projects as well as math calculators and a selection of tools for calculating dates.

Cooking Calculators

A suite of recipe calculators to help you with converting between metric and imperial units when baking or cooking.

Unit Conversions

A series of unit converters for area, energy, fuel consumption, length & distance, volume, weight and more.

Featured Articles

How to Calculate Square Footage - Step by Step

Whether you're shopping for carpet, or planning a landscaping or home improvement project, one essential concept is calculating square footage. Join us as we discuss the steps involved in the process.Square Footage Calc...

How Many Miles is 10,000 Steps?

For an individual of average height, 10,000 steps equate to around 4 ½ miles of walking, or 6 miles of running. Such a person has an average stride length of between 2.1 to 2.5 feet, meaning they take approximately 2,250 steps to walk a mile.To gain a more accurate me...

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.

Are the calculators on our site free to use?

Yes, all the online calculators on The Calculator Site are free for you to use at your convenience. Our website is funded by the advertising we feature on our pages.

We hope you find our calculators useful. You can learn more about The Calculator Site and the causes we support (tree planting) on our about page.