Work & Business
Freelance Scope Creep Buffer Calculator
A fixed project price should cover delivery work, revisions, meetings, admin, direct expenses, and uncertainty. Add the hours first, apply a scope buffer to labour rather than reimbursable expenses, then compare the quote with your target effective rate. A written change-order rule matters more than any percentage buffer.
Planning estimate only. Check measurements and real-world constraints before buying materials or making a commitment.
Calculate your scenario
Change any input. Results update immediately.
Your results
Planned hours
43.0 hours
Delivery, revisions, and admin.
Buffered hours
49.4 hours
Internal planning allowance.
Suggested labour quote
$4,203.25
Before taxes and separate direct expenses.
How the calculation works
The calculator applies this relationship to the inputs above. Keep every measurement in the unit shown.
Worked example
Use this example to check the calculator by hand before relying on a result.
Assumptions behind the result
- • The project scope is written.
- • Revision hours are capped.
- • The target rate covers business overhead.
- • Direct expenses are quoted separately.
- • Out-of-scope requests trigger a change order.
Mistakes that change the answer
- • Pricing only production hours.
- • Using a buffer instead of defining revisions.
- • Absorbing new deliverables into the original fee.