B/Billable Toolkit
Free calculators for freelancers & small businesses
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Project Quote Calculator

Estimate the hours, then let the calculator add contingency for scope creep and markup on any costs you pass through.

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Quote

How it’s calculated

Labour is hours × rate. Contingency is added to labour only. Pass-through expenses get your markup. The deposit is a share of the final total.

quote = hours × rate × (1 + contingency) + expenses × (1 + markup)

Worked example

48 hours at $75 is $3,600. Add 15% contingency ($540) and $240 of expenses with a 10% markup ($264), and the quote is $4,404, with a $2,202 deposit to start.

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Questions

How much contingency should I add?

10–20% is common for fixed-price work. Use more when the brief is vague or the client is new to you.

Should I ask for a deposit?

Yes. A 30–50% deposit filters out unserious clients and protects you if the project is cancelled.

Doing these numbers every month? Accounting software can automate invoices, reminders and tax reports.

See options

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