# Calculators and Converters

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

Whether you're looking for 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. Our metric converters will provide you with answers to conversions for many different areas and types. Please select a calculator from one of the following:

## Unit Conversions

**Category: other**

You have to hand it to those Romans; for an empire that crumbled away at least 1,500 years ago they’ve left us with a heck of a legacy. And one of ‘the things that the Romans have done for us’ is to leave us a numbering system that, though occasionally mystifying, is still proving remarkabl... read more

Interesting and amazing maths facts

**Category: units**

The more one studies mathematics, the more mysterious it becomes, with powers that seem quite ‘spooky’ and almost magical at times. Consider the Power of Pi: it seems such a simple concept, the ratio between the circumference of a circle and its diameter... read more

How big is a billion?

**Category: finance**

There’s a phrase about government spending that’s become a classic. "A billion here, a billion there, and pretty soon you’re talking real money…" This witticism is often (probably wrongly) attributed to long serving US Republican Senator Everett Dirksen (1896-1969)... read more

#### 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.

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