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About The Calculator Site

The Calculator Site is operated by the Hazell family, based in both the United Kingdom and Taiwan.

The website was founded in 2004 as a fun hobby and has since developed into a very popular tool. The Calculator Site has grown in popularity, particularly so in recent years. Traffic has risen from around 3,500 visitors per day in early 2012 to over 100,000 visitors per day in 2021.

In 2022, The Calculator Site achieved recognition as a Top Education Site at the Ezoic Publisher Awards ceremony.

Ezoic Education Award

Our experience

Alastair Hazell has a background in entrepreneurship, business strategy and problem solving, with a wealth of experience in the internet industry. He has created over 150 calculators in his 15 years of working on The Calculator Site.

Alastair previously founded the health website Medical News Today, leading it to become an influential health publisher over the course of a decade and a half, before selling it to Healthline in 2016. You can find out more about Alastair's journey on his personal website at argh.com.

What is The Calculator Site?

The Calculator Site was built to provide you with helpful calculation and converter tools for every day use. Whether you're looking to work out the compound interest on your savings, convert between two metric or imperial measurement units or calculate your BMI, The Calculator Site has tools to help. Use of all of the converters and calculators is subject to terms and conditions.

Why is there advertising on this website?

The small amount of advertising revenue generated by this website goes towards paying for the hosting, bandwidth and continued development of the website. The adverts displayed on the website are contextually served by Ezoic and Google. We began partnering with Ezoic in 2016. Should you spot any ads that you consider to be inappropriate, please contact us.

Your feedback

We always love to hear feedback about our website. Whether you would like to make a suggestion of an extra unit or category of conversion that you would like to see, or whether you have any ideas on how to make the site better for you, please get in contact with us. You can do this by using our feedback page.

If you like our website, please consider helping plant some trees in the Amazon.

Cartoon of a 'calcu-gator'