Freelance Project Price Calculator: Quote a Fixed Price

A fixed price feels simple to a client and risky to a freelancer. If the work takes longer than you estimated, the extra hours come out of your pay. This calculator builds the price from your rate and estimate, then shows what happens to your real hourly earnings if the job runs over.

How to use this calculator

1. Enter the hours you estimate the work will take.
2. Enter your hourly rate. If you are not sure of it, work it out first with the freelance hourly rate calculator.
3. Add a contingency for revisions, feedback delays and unknowns.
4. Add direct costs specific to this project, such as licences, stock assets or contractors.
5. Enter a platform fee if a marketplace takes a cut, or zero if you invoice directly.
6. Set your deposit and a stress-test overrun.

The formulas

• Labour = estimated hours × hourly rate
• Contingency = labour × contingency %
• Cost before fee = labour + contingency + direct costs
• Price to quote = cost before fee ÷ (1 − platform fee %)
• Deposit = price × deposit %
• Hours if it overruns = estimated hours × (1 + overrun %)
• Real hourly rate = (amount you keep − direct costs) ÷ hours actually spent

Dividing by one minus the fee grosses the price up so that, after the platform takes its share, you still keep exactly the amount you need. The calculator is tested to confirm this: run the quoted price back through the fee and you land on your target.

Why the stress test matters

Most people underestimate how long work takes, and a fixed price turns every extra hour into unpaid time. In the default example, a job estimated at twenty hours that takes thirty percent longer pays noticeably less per hour than planned, even though the client paid the agreed price. Try increasing the overrun figure and watch your real rate fall. It is a quick way to see how much contingency you actually need, and whether a tightly priced job is worth taking at all.

What contingency is for

Contingency is not padding to be quietly hidden. It pays for the ordinary uncertainty in any project: a client who takes a week to reply, a revision round that grows, a requirement that was unclear. The more precisely the work is defined, the less you need. If a brief is vague, consider splitting the project into a paid discovery stage first, and pricing the main work once you know what it involves.

Protecting the price with scope

A fixed price only works if the scope is fixed too. Write down what is included, how many revision rounds are covered, what the client must provide and by when, and what counts as extra. When new requests arrive, refer back to that agreement and price the additions separately. Most disputes over freelance prices are really disputes over an undefined scope.

Deposits and stages

Asking for a deposit before starting, and for the balance on delivery or in stages, protects your time and improves cash flow. Agree the schedule in writing. You can create a clear invoice for each payment with the invoice generator.

Common mistakes

Pricing without a rate. If your rate is guessed, so is every price built from it.

No contingency. Nothing ever goes exactly to plan.

Forgetting platform fees. Quote so that you keep what you need after the fee, using the platform fee calculator if you also face conversion and withdrawal costs.

Vague scope. It invites unpaid extras.

Never comparing estimates with reality. Record the real hours after each job and use them next time.

Assumptions and limits

The calculator assumes a single rate for all hours, a single contingency percentage and a platform fee that is a share of the price. It ignores tax, unpaid time spent winning the job, late payment and currency conversion. It gives you a defensible starting number, not a guarantee that a client will accept it. For where to find work, see our freelancing guide and our comparison of freelance platforms.