## Tools

We'd like to show you some *TopCode* coding examples....

### Calculator

There are lots of calculators on the web and lots of sites with lists of
formulae. *TopCode* has put the two together so you can calculate the
answer to a mathematical problem without knowing the formula. If your problem
is not listed, let us know.

How to use the calculator:

- Find a form for your maths problem...
- Enter the data...
- Click 'Calculate'!

### Converter

Convert any unit into another, even some units you may not have heard of.

### BMI calculator

Calculate your BMI to see your weight classification. It might be the time to diet!

### Digitiser

*TopCode's*
digitiser tool helps you create a polyline lat/long coordinate string.