💼 Business & Freelance Calculators
Everyday business & freelance calculators that give you a straight answer in under a minute. New tools are added regularly — the ones below are live now, with more on the way.
Profit Margin vs Markup Calculator
Profit, margin % and markup % from cost and price — or the price you need for a target margin.
📊Break-Even Point Calculator
Break-even units, revenue and margin of safety from your fixed costs and pricing.
📄Invoice Late Fee Calculator
Flat, monthly or daily late fees on overdue invoices — fee plus new total.
💼Contractor Day Rate Calculator
Convert a contractor day rate to hourly — or hourly back to a day rate.
💳Stripe Fee Calculator
The Stripe fee on any charge — or the reverse: how much to charge to keep an exact amount.
Frequently asked questions
Are these calculators free?
Yes — every calculator on CalcNest is free, with no sign-up required.
Do my inputs get stored?
No. Calculations run in your browser and your numbers are never sent to our servers.
When will more business & freelance calculators be added?
We're building toward 39 calculators in this category. New tools go live every week.