Free calculators for your site

Writing for freelancers? Give your readers a working calculator instead of a formula. Every FreelanceMath calculator can be embedded for free — no account, no tracking, no ads inside the embed.

  • Responsive, mobile-friendly, automatically resizes to fit
  • Works in WordPress, Ghost, Webflow, Squarespace, Notion sites and any HTML page
  • Free forever; just keep the small credit link under the calculator

Freelance Hourly Rate Calculator

Work backwards from the income you want to the minimum rate you must charge — after taxes, expenses and unpaid time. Preview →

Contractor vs Employee Calculator

Compare a salaried job offer with a contract rate, including benefits, retirement match, paid time off and extra taxes. Preview →

Project Pricing Calculator

Turn an hours estimate into a fixed-price quote with a risk buffer, deposit and payment schedule. Preview →

Freelance Runway Calculator

See how many months your savings last while your freelance income ramps up — and the month you break even. Preview →

Salary to Hourly Calculator

Convert an annual salary to hourly, daily, weekly and monthly pay — or an hourly rate back to a yearly salary. Preview →

Day Rate Calculator

Turn an hourly rate into day, half-day, weekly and monthly rates — and see your yearly revenue. Preview →

Rate Increase Calculator

See what a rate rise is worth — and how many hours you could lose and still earn the same. Preview →

Effective Hourly Rate Calculator

Divide what a project paid by every hour it really took — calls, revisions and admin included. Preview →

Per-Word Rate Calculator for Writers

Convert your hourly target into a per-word rate, and check what a client’s per-word offer really pays per hour. Preview →

Retainer Pricing Calculator

Price a monthly retainer, and see what you really earn per hour if the client uses more or less than agreed. Preview →

Value-Based Pricing Calculator

Price on the value you create, then compare it with what hourly billing would pay. Preview →

Rush Fee Calculator

Work out a fair surcharge when a client needs the work faster than your normal turnaround. Preview →

Freelance Discount Calculator

See how much more work you need to do to make up for a discount — it’s more than you’d think. Preview →

Freelance Tax Set-Aside Calculator

Know exactly how much of every client payment to move to your tax account — and your quarterly amounts. Preview →

Late Payment Fee Calculator

Calculate interest and fees on an overdue invoice, and the total the client now owes. Preview →

Freelance Platform Fee Calculator

Gross up your price so you still take home what you want after marketplace and payment fees. Preview →

Payment Terms Cash Flow Calculator

See how much cash your payment terms tie up — and how much shorter terms or deposits would free. Preview →

Freelance Income Goal Calculator

Break a yearly income goal into projects, clients and proposals you need each month. Preview →

Pay Yourself a Salary Calculator

Smooth out irregular freelance income: a steady monthly salary and the buffer you need to keep it steady. Preview →

Freelance Break-Even Calculator

The minimum billable hours each month to cover your living costs, business costs and taxes. Preview →

How to add it in WordPress

  1. Edit your post and add a Custom HTML block.
  2. Paste the embed code.
  3. Preview and publish.

Want a calculator customized for your audience? Email us — we're happy to help.