Contact me

Alastair Hazell
Kemp House,
152-160 City Road,

You can find out about The Calculator Site by visiting my about page. If you have a question or comment about my web site, please use the form below to get in touch with me.

Important note: please do not ask me to work out specific, personalised calculations for you as this is not a service that I am able to provide - I simply develop the tools to help guide you. In addition, please do not ask me for financial or medical advice - please seek that from a qualified financial/medical advisor.

If you would like to send me a suggestion for my website, I would be delighted to hear from you.

Log of calculator updates

Updates to calculators icon

I am constantly improving and adding functionality to my calculators, often based upon suggestions from people like you. The latest major updates:

April/May 18

Two new calculators launched - LED bulb calculator and pregnancy calculator as well as updates to the loan calculator.

1 Feb 18

Launch of a WHR calculator to complement the BMI and BMR calculators.

14 Nov 17

Creation of a days between dates calculator.

5 Aug 17

Launch of a cool new birthday calculator. Give it a try!

17 Mar 17

Addition of a CAGR calculator, following a user request.