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Calculators and Converters

Choose from a multitude of free calculators and converters in the areas of finance, health, cooking, math and science for everyday use.

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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.

Health

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 Write Feet and Inches

There are two popular ways of writing feet: the abbreviation “ft.” or the single apostrophe (′). Inches can be represented using “in.” or with a double apostrophe (″). As an example, five feet, ten inches could be written as 5 ft. 10 in or 5′10″...


How Many Miles is 10000 Steps?

For an individual of average height, 10,000 steps equate to around five miles of walking, or six miles of running. Such a person has an average stride length of between 2.1 to 2.5 feet, meaning they would take approximately 2,000 steps to walk a mile.To gain a more accurate measurement for the dista...


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.


How To Measure Your Waist

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.