Calculators and Converters

The Calculator Site features a variety of free financial calculators, imperial to metric converters and other useful calculation and conversion tools for general use.

Whether you're looking to work out a personal loan repayment schedule, wish to work out the compound interest on your savings or want to plan for retirement, the financial calculators will quickly help provide you with answers to your calculations. The metric converters will provide you with answers to conversions for many hundreds of different units. Please select a calculator or converter from one of the following:


Phenomenon of light

How long is a light-year?

Exactly how long is a light-year? No, this isn't a trick question, but many people might think so. Unlike what the phrase may suggest at first glance, lightyear isn't a measure of time - it's a measure of distance. The proper definition of a lightyear would be "the distance light travels in a year"...


Streams of light indicating speed

How fast is the speed of light?

The speed of light is something that every student will have heard about, perhaps in school or maybe in popular culture (Star Wars anyone?) but many will not fully understand. It seems incredibly complicated and incomprehensible but, quite simply, it is the speed at which light travels...


photo of a tape measure

The weird and wonderful world of units of measurement

For many centuries, humankind has been measuring stuff. OK, it might be a stretch to imagine a neanderthal taking notes to see if his cave would accommodate an Ikea corner sofa (this is totally unrealistic: we all know he was too busy self-importantly prodding the bison steaks on the barbecue while ...


measuring items with dollar bills

How to measure things without a ruler

Quick confession: I donít take my ruler everywhere. Sometimes I just canít justify the extra baggage when Iím only dashing out for a sandwich, yíknow?But wait. Letís talk about that sandwich. In the advertisement, that sandwich looks spectacular: fluffy, thick bread sits atop a generous pile of past...


For more articles related to finance and measurements, please visit the featured articles section.

Comments and Suggestions?

Please feel free to suggest any extra units and measures for the imperial and metric conversions. Although all suggestions will be considered, I do not guarantee that all suggested units and measures will be added.

If there are any other finance calculators or converters that you feel would be a useful addition to this website, then please suggest those also. You can contact me here.