Frequently Asked Questions
Quick answers to the questions we get most often. If you do not find your answer here, please contact us.
Are calculators free?
Yes. All of them are free. No sign-up, no trial, and no paywall before you get an answer.
Do I need to sign up?
No. You can use every calculator without an account. You do not need to give a name or email to see a result.
Are results exact?
No. They are estimates based on the numbers you enter and the assumptions shown. Real outcomes may differ. For example, a loan calculator may not include every fee or rate change a lender applies. Check the assumptions below the result.
Do you store my numbers?
No. Inputs stay in your browser. We never see them and never store them. See our Privacy Policy.
Which calculators do you have?
We cover finance, health, math, and everyday calculations, and we add more regularly. See the full list on our Calculators hub.
Can I request a calculator?
Yes. Tell us what you want to work out and which inputs you expect. Requests shape what we build next. We cannot promise a date for every request, but we read and consider each one.
What if I spot an error?
Please tell us. Include the calculator name, the numbers you entered, and the result you got. That helps us reproduce it and fix it. We check every report.
Do you give financial or medical advice?
No. We provide general information and estimates only. No financial, investment, tax, legal, or medical advice, and no diagnosis or treatment. For decisions that matter, talk to a qualified professional.