About BizCalcGuru

BizCalcGuru is a free toolkit for small business owners, freelancers, contractors and employees. We built clear calculators for pricing, profit and pay, with the formula on every page so you understand the numbers behind your decisions.

How we build our calculators

Every calculator uses a published formula that we show on the page, so you can check the math yourself. Where a tool uses prices or rates, we name the source (for example the U.S. Energy Information Administration) and the date of the data. When the source publishes new numbers, the site is updated.

Our promise

• Free to use, no sign-up.
• Formulas shown on every page.
• Sources and dates listed for all data.
• Corrections welcome — tell us if something looks wrong.