Found a mistake, or want a calculator we do not have yet? We read every message.
Write to hello@stepcalcs.com.
Reporting a wrong answer
Please include the calculator you used, the numbers you entered and the answer you expected. The quickest way is to press Copy link under the result and paste that link into your email, because it contains everything you typed.
Suggesting a calculator
Tell us what you need to work out and how you would use it. Suggestions from visitors decide what we build next.