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VolexTool

About VolexTool

VolexTool is a free collection of 48 online calculators and everyday tools — from VAT, GST and mortgage calculators to unit converters, image tools and PDF tools. It is an independent website, built and maintained by its founder, with one simple goal: tools that give the right answer, explain how they got it, and respect your privacy.

Who runs VolexTool

VolexTool is built and maintained by Ahmed Bilal, its founder. Ahmed writes and updates every calculator on the site. For tax and pay tools, rates and thresholds are copied from the official source (for example GOV.UK and HMRC for the UK, the Canada Revenue Agency for Canada and the Australian Taxation Office for Australia), the source is linked on the page, and every change must pass more than 600 automated checks before it goes live.

Ahmed is not a qualified tax adviser or accountant, and VolexTool does not give personal financial advice. The calculators are designed to give accurate estimates and to show their working; for decisions about your own situation, please speak to a qualified professional. If you spot an error, email support@volextool.com and it will be checked and corrected.

Why we built it

Many calculator websites are slow, hide their formulas, or quietly use outdated tax rates. We wanted the opposite: pages that load quickly on a phone, show the exact formula on every tool, link to the official source behind it, and handle the real differences between countries — for example, Canadian mortgages compound semi-annually by law while US mortgages compound monthly, and Quebec charges QST alongside GST while Ontario uses a single HST.

Where our numbers come from

Tax rates, thresholds and formulas are taken from government and standards bodies, not from other calculator sites. The main sources are:

Where a tool depends on an official rate, rule or standard, its page lists that source at the end of the guide.

How every tool is tested

Before a tool is published, its calculation engine is checked against worked examples from the official sources and against edge cases such as zero interest, negative numbers, rounding to the cent and invalid input. The site has more than 600 automated checks that are run before each update is published — for instance, that removing 20% VAT from £120 gives exactly £100, that $100 in Quebec comes to $114.98, and that 1 inch converts to exactly 2.54 cm. An update with a failing check is not published.

Keeping rates up to date

Tax rates change. We review the rates used by our tax, paycheck and payroll tools when a government announces a change, and at least once a year at the start of each tax year. When a rate changes, the tool page says so — for example, our Canada calculator notes that Nova Scotia’s HST fell from 15% to 14% on 1 April 2025.

Your privacy

Calculators run in your browser. The numbers you type, and the images and PDFs you process, are not uploaded to our servers or stored. We use Google Analytics to see which pages are visited, and only with your consent if you are in the UK, EEA or Switzerland. Full details are in our Privacy Policy.

How the site is funded

VolexTool is free to use, with no sign-up. The site may show advertising to cover its running costs. Advertisers have no influence over our calculations or content.

Limitations

Our tools give estimates for general information. They are not financial, tax, legal or medical advice, and they cannot account for every personal circumstance. For decisions that matter — a mortgage, a tax return, a diet change — please check with a qualified professional. See our Disclaimer.

Found a mistake?

If a result looks wrong or a rate is out of date, please tell us. Corrections are our top priority. Email support@volextool.com or use our contact form, and include the tool, the numbers you entered and the result you expected.