Support

FreeByte is free and has no account system, so there's no support queue to log into. Use the form below to ask for a calculator, or email us directly for anything else.

Request a calculator

Tell us what you're trying to work out and we'll build it if enough people need it. The more precisely you describe the inputs and the answer, the faster it gets made.

A result looks wrong

Every calculator has a "Report inaccurate" link underneath it. That's the fastest route — it tells us exactly which tool and which numbers you used.

Find the calculator

Anything else

Press, corrections to the method, licensing, or a question the calculators don't answer — email us and a person will read it.

hello@freebyte.dev

Common questions

Is FreeByte really free?: Yes. No account, no paywall, no export limits. Ads and the occasional coffee cover the hosting.
Do you store the numbers I type in?: No. Calculations run in your browser and never reach a server. The only thing this page sends us is the request you write above.
How long does a new calculator take?: It depends on the maths and how many people ask for the same thing. Requests with a clear worked example move fastest.
Can I use these for real financial decisions?: They're educational estimates, not advice. Check anything that matters with a qualified professional — see the method page for what each tool assumes.

Want to help?

FreeByte stays free because it's cheap to run. If it saved you a spreadsheet, a coffee keeps the lights on.

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