How the project price is calculated
A fixed price is an hourly or daily rate in disguise. You still estimate the time, multiply it by your rate and add what the project costs you, but the client sees one number instead of a running clock. The freelance project price calculator follows that path in four steps, and every number it uses is one you enter.
In the example, four phases add up to 79.7 expected hours. A 15% buffer turns that into 91.6 hours, which at $85 an hour is $7,787.42. With $300 of project costs and the price rounded up to the next 10, the quote comes to $8,090.00.
Three ways to estimate a task
How sure you are about a task decides how you should estimate it, so the calculator offers three modes. You can switch at any time and your numbers are carried over.
- One number. Fine for work you have done many times, where the time hardly changes. The low, expected and high time are all the same.
- Low to high. You give the time it takes when things go well and when they do not. The expected time is the midpoint, and the range shows what the project would cost if you billed by the hour.
- Three-point. You add a most likely time between the best and the worst case. The expected time follows the PERT formula: (best + 4 × likely + worst) ÷ 6. The likely value counts four times, but a long worst case still pulls the estimate up. The example design phase, at 16, 20 and 30 hours, comes to 21 expected hours rather than 20.
Whatever the mode, split the work small enough that you can picture each piece. "Website" is hard to estimate; "home page design", "two rounds of changes" and "content entry for ten pages" are much easier. Writing the tasks down also gives you the scope for your quote: what is included, and by omission what is not.
Buffer, rush fees and discounts
The contingency buffer is extra time on top of the expected time. It pays for the things nobody plans: a slow reply, a file in the wrong format, a change that is small to the client and large for you. The calculator adds it to the time before it multiplies by your rate, so it raises the fee but leaves project costs alone. How much buffer you need is something only your own past projects can tell you. Compare a few planned and actual times, and use the typical gap.
A rush fee raises your rate for this project, for example because you have to move other work or work evenings. A discount lowers it. Both change the fee for your time and not the project costs, because a license or a subcontractor costs you the same either way. With a discount, the break-even time in the results gets shorter: the cheaper the project, the less room you have before you work below your normal rate.
Rounding up to the next 10, 50 or 100 makes the price easier to read. The extra goes to the fee, so it shows up in the time the price pays for.
The effective hourly rate
With a fixed price, the risk of running over moves from your client to you. The effective rate shows what that means. It divides the fee, the price minus project costs, by the time the work actually takes. If you finish at the low estimate, your effective rate is above your normal rate. If the work takes the whole buffer, it is your rate, plus any rush fee. Past the break-even time, every extra hour lowers it.
The "If the work takes longer" table plays that through for the low, expected and high estimates and for 25% and 50% over the expected time. Rows below your normal rate are marked. If the high estimate already falls well below your rate, the project needs more buffer, a smaller scope or a clear rule for paid changes.
Phases and payment split
The price by task or phase splits the fee in proportion to each task's expected time and lists project costs on their own line, so the parts add up exactly to the fixed price. That is useful when a client wants to see where the money goes, or when you quote phases separately.
The payment split divides the fixed price into payments in the order they are due, like 50/50 or 30/40/30. Shares are in percent and must add up to 100. Each payment is rounded to the cent, and any cent left over by the rounding goes to one of the payments, so the schedule always adds up exactly to the price. Which split you use, and whether the first payment is due before you start, is up to you and your client.
Fixed price or hourly billing?
Compare the fixed price with the range. Billed by the hour, the client would pay somewhere between the low and the high estimate, and you would carry no risk of overrun. A fixed price gives the client certainty, and in exchange you carry the risk, which is what the buffer pays for. When the scope is clear and you have done similar work before, a fixed price can earn you more than your rate. When the scope is vague, an hourly or daily rate, or a fixed price per phase, is safer.
To work out the rate itself, start with the hourly rate calculator or the day rate calculator. When the price is set, write it up with the quote generator, and bill the payments with the invoice generator.
How to use the freelance project price calculator
- 1Enter your rate and choose whether you count in hours or days.
- 2Pick an estimate mode and list the tasks or phases with their time: one number, a low and high value, or best, likely and worst case.
- 3Add project costs, a contingency buffer and, if needed, a rush fee or discount. Choose how to round the price.
- 4Set the payment split, then read the fixed price, the range and the effective rates. Copy the result for your quote.
Frequently asked questions
How do I price a freelance project?
Break the work into tasks or phases, estimate the time each one takes, and multiply the total by your hourly or day rate. Add a buffer for the unknowns and the project costs you pass on, like licenses, stock images or subcontractors. The calculator does this and shows the fixed price, the range and a payment split.
What is a three-point estimate?
Instead of one number you give three for each task: the best case, the most likely case and the worst case. The calculator turns them into an expected time with the PERT formula, (best + 4 × likely + worst) ÷ 6, so the likely value counts most while a long worst case still pulls the estimate up.
How big should the contingency buffer be?
There is no single right number. It depends on how well you know the work, the client and the scope. Look back at a few finished projects and compare the time you planned with the time they took; the gap is a good starting point. A three-point estimate with a wide worst case already covers part of the risk.
What does the effective hourly rate tell me?
With a fixed price you are paid the same amount however long the work takes. The effective rate is that fee divided by the time you actually spend. If the project runs over, it falls below your normal rate. The calculator shows it for the low, expected and high estimate and the point where it drops below your rate.
Should the rush fee or discount apply to project costs too?
In this calculator they apply only to the fee for your time. Project costs are passed on as they are, because a rush job does not make a license or a subcontractor cheaper or more expensive for you. If you want a markup on costs, add it to the cost amount.
Why does the price change when I switch between hours and days?
Switching converts the rate and every estimate with the hours per day you set, and rounds them to two decimals. That rounding can move the price by a few cents. Check the hours per day before you switch, so the conversion matches your working day.