Frequently asked questions
Common questions about HandyConvert and its calculators.
Is HandyConvert free to use?
Yes — every calculator on HandyConvert is completely free, with no account, sign-up, or trial. The site is supported by unobtrusive advertising.
Do I need to create an account?
No. HandyConvert has no accounts, logins, or email collection. Your last-used values are saved privately in your own browser, never on a server.
How accurate are HandyConvert’s calculators?
The math is exact for the values you enter, and every tool shows its working so you can check it. Treat each result as a reliable starting point, then check it against the actual materials in front of you before cutting or buying.
What calculators does HandyConvert offer?
Home & Build covers plywood cutting, stairs, roof pitch and rafters, deck boards, and paint coverage. Cooking has a recipe scaler and a pan substitution calculator. Finance has a Canada-and-US mortgage calculator and a side-by-side mortgage comparison.
Is HandyConvert available in French?
Yes. The entire site is bilingual — every page and every calculator is available in French and English, and you can switch language at any time from the header.
Can I use HandyConvert on my phone?
Yes. Every calculator is mobile-friendly: it recalculates as you type, the number pad opens for numeric fields, and the layout adapts to any screen size.
Why use a calculator instead of asking a chatbot?
A calculator draws the diagram, compares scenarios side by side, recalculates instantly as you change inputs, and gives you a shareable link to the exact result — things a chat answer cannot do reliably. HandyConvert is built for the jobs a chat window handles poorly.