Free Tools & Calculators for Freelancers
Fast, private, free calculators and checkers — built for freelancers and the self-employed, useful for everyone. Every tool runs entirely in your browser: no sign-up, nothing uploaded. Part of FreelanceOS, the all-in-one operating system for independent professionals.
Word Counter & Reading Time
Live word, character, sentence & reading-time counts.
Time Card Calculator
Weekly hours, breaks, overtime & pay.
Salary ↔ Hourly
Convert salary to an hourly rate, and back.
Margin & Markup
Margin %, markup % and the price to charge.
Percentage Calculator
Percent of, % change, and more.
Sales Tax / VAT
Add or reverse VAT/GST with region presets.
Late Fee Calculator
Interest owed on an overdue invoice.
Break-Even Calculator
Units or hours needed to cover costs.
Mileage Deduction
Business miles × IRS standard rate.
Words to Time
Word count → speech / reading time.
Will AI Replace My Job?
Score your skill's AI-displacement risk.
Freelance Burnout Test
A quick self-check for solo-work burnout.