Free online calculators & tools
for everyday tasks
Pay and tax calculators, exam score predictors, text and image tools – fast, free and ready to use. No sign-up, no downloads.
- 100% freeNo limits or paywalls
- No sign-upOpen a tool and go
- Any devicePhone, tablet or PC
- 2026 dataOfficial figures, shown step by step
New & trending
Our biggest tools, each with dedicated pages for every state, exam or restaurant.
Browse by category
Pick a topic to jump straight to the right tools.
All tools
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How it works
Three steps, a few seconds.
Search above or browse a category – every tool has its own page.
Type a number, paste text or drop in an image. Nothing to install.
See the answer instantly, then copy, download, save as PDF or share it.
Why people use Oualator
Built to be quick, honest and easy to use.
Every tool is free with no hidden fees, subscriptions or usage caps.
Clean pages that load quickly and give you the answer without clutter.
Calculators explain how each result is worked out, using current official figures.
No account needed, and most tools do their work right in your browser.
From the blog
Guides and fixes from the Oualator team.
Frequently asked questions
Are Oualator tools really free?+
Yes. Every calculator, generator and converter on Oualator is free to use, with no sign-up and no usage limits.
Do I need to create an account?+
No. Open any tool and start using it straight away – there is nothing to register for or install (except our optional Windows app, Storage Doctor).
Do the tools work on my phone?+
Yes. Every tool is built to work on phones, tablets and computers in any modern browser.
How accurate are the calculators?+
Our money, tax and exam calculators use official published figures for the current year, and each page explains how the result is worked out so you can check it yourself. Estimates are clearly labelled as estimates.
How often are new tools added?+
New tools are published regularly – this page and the sitemap update automatically, so the newest tools always appear in the list below.
Can I suggest a tool?+
Yes, please do! Send us your idea through the contact page and we will consider it for a future release.
Can’t find the tool you need?
Tell us what you would like to calculate, convert or create – we add new tools every week.