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Featured articles

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


Investment value graph rising

Future Value Formula - Explained

As part of the development of my compound interest calculator, I incorporated the ability to include additional monthly deposits and deductions in calculations. In my earlier article discussing the compound interest formula, I featured a formula for the future value of a series...


VE Day announcement in 1945

How Many Days Since...?

To coincide with the launch of my new days between dates calculator, I thought we would take a look at the number of days since some of the most important events in our history took place. The 'days between dates calculator' allows you to work out the number of days, weeks and months since (or to) a...


Selected days of the year

How Many Weeks Are In a Year?

Any impatient soul counting down to their next birthday, annual holiday or festival is going to need 52 weeks' worth of patience, because that's the length of a complete year. A normal year has 365 days, which, when divided by 7 (Monday,...


US measuring cups

How Many Grams Are In a Cup?

Are you a ‘cup half-full’ or a ‘cup half-empty’ kind of person? Hopefully, you’re the former, because it’s going to take some patience, hope and determination to get to grips with the ludicrous concept that is the concept of cooking with measuring cups...


One hundred trillion Zimbabwe dollars

How Much Is a TRILLION?

In a previous article we discussed how much a billion is. It has proven to be a very popular topic. And so we thought - why not feature an article about the next big number up? Here is the result as, in today's article, Becky Kleanthous discusses the trillion...


How Many Tablespoons Are In a Cup?
Today we turn our attention to cooking measurements and, specifically, this question from Kelly: "I'm baking a cake using a cookbook recipe and would like to know how many tablespoons there are in a cup? It seems that a cup and tablespoon have different sizes depending on where in the world you are?...

How Much Is a BILLION?
Hey there! We've got some good news and some bad news for you. Let's do the good news first, shall we? If you've stumbled across this page when trying to make sense of the numbers in your great-aunt Mildred's inheritance, then prepare to start cackling maniacally and rubbing your hands together like...

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 To Calculate Your BMR
You’ve almost certainly heard of your BMI, the figure representing the relationship between your height and weight, but have you heard of your BMR? These three little letters could provide the information you need to kick-start a successful weight-loss regime (and sorry, but no: they do not stand fo...

How To Convert a Decimal To a Fraction
Some decimals are so familiar to us that we can instantly see them as fractions: if your sister is 14.5 years old, you know that she’s 14 1/2; if you buy a bag of potatoes weighing 0.75kg, you know that it’s 3/4 of a kilo; if you give your sister a 3/4 kilo bag of potatoes for her 18th birthday, you...



Other featured articles


If you have any finance articles or interesting articles on units that you would like to submit for consideration for future publishing, please submit them via the form on this page.

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.