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Questions, corrections, or a calculator you would like to see? Email support@trycalculatorz.com and a real person will read it.

Found a number that looks wrong? That is the message we most want to get. Include the calculator name and the exact values you entered, so we can reproduce it and fix it. We would rather correct a formula than defend one.

We aim to reply within a few working days. TryCalculatorz is run by a small independent team, not a company with a support desk, so please bear with us.