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This section of The Calculator Site contains interesting articles about finance, currency as well as instructional 'how to' features on converting between units.

Profit Margin Formula - Explained

The profit margin formula is a way of calculating what percentage of sales revenue remains as true profit, after all costs and expenses are accounted for. Profit margin is also sometimes known as gross profit ratio or return on sales ratio. Obviously, the higher the percentage, the healthier the com...

How To Calculate Your BMI

Body mass index is a measure of body fat and is commonly used within the health industry to determine whether your weight is healthy. BMI applies to both adult men and women and is the calculation of body weight in relation to height. This article delves into the BMI formula and shows you how to cal...

BODMAS Explained - Order Of Mathematical Operations

When you're given a sum has two numbers and one operator, calculating an answer seems straight forward (25 × 3 = 75). But, what happens if someone throws in a couple more numbers and operators: (5 + 25 × 3 − 2 = .....)? Which part do you do first? Thankfully, there is a set of...

How Big Is An Acre? Explained

Today we're going to look at the acre - a unit of area commonly used for measuring tracts of land.Let me begin with a question. Did you know that during the Middle Ages, an acre was defined as the amount of land ploughable in one day by one man and an ox? Not very specific, then - especially if your...

How Many Beers Are In a Keg?

The chances are you've arrived at this page trying to do some research for an upcoming party, wedding or other event that's going to involve a lot of people. In which case, you're likely to be wondering how many kegs you need to order to satisfy your crowd of beer-thirsty compadres...

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...

How To Measure Your Hips
In a previous article we covered how to measure your waist and discussed how useful it is to know your waist size. Similarly, hip measurements can be really useful for fitting clothes, monitoring weight changes and assessing WHR (waist-to-hip ratio). So, let's take a look at the process for meas...

Why Does Airline Baggage Weight Matter?
This one started with one of those email forwards derived from someone's flippant Facebook or Twitter posting. It featured a photo like the one above and a caption that (stripping out the swear words) read:"This p...

How Many Feet Are In a Mile?
In our latest article we're going to address the question of how many feet there are in a mile. Albert Einstein was once asked how many feet there are in a mile. His reply was "I don't know, why should I fill my brain with facts I can find in two minutes in any standard reference book?" These days, ...

BMR Formula (Basal Metabolic Rate)
BMR stands for Basal Metabolic Rate and represents your daily energy expenditure if your body is at rest all day. Look upon it as the minimum number of calories your body needs in order to function for 24 hours.To calculate your BMR, you require an equation (commonly the Harris-Benedict formula or M...

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