Calc

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.


How Many Grams Of Sugar Are In a Teaspoon?

Mary Poppins once famously claimed that, "A spoonful of sugar helps the medicine go down", but given that the children in her care were subsequently treated for multiple cavities and type 2 diabetes*, could she have made an error in her calculations? Don't find yourself in the same situation, defend...


How Many Steps Are In a Mile?

When calculating how many steps make up a mile, it is important to give consideration to your stride length. As an example, the stride of a 7ft tall runner will be longer than that of a 4ft person enjoying a casual walk. And, therefore, the number of steps in a mile will vary...


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.


Calculator suggestions

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Featured article

The history of the calculator

Photo of abacus

From abacus to iPad, learn how the calculator came about and developed through the ages. Read our featured article.