Estimate a realistic time and cost buffer for a food courier using the parts of the work that actually affect the outcome. Adjust the assumptions to match your schedule, fees, expenses, or reserve rate. The result separates the headline figure from its supporting numbers so you can compare offers, plan cash flow, and avoid treating gross revenue as spendable income.
The main result is a cost-and-time planning basis. Add any desired profit or taxes separately rather than hiding them in the contingency.
A contingency is not automatically earned margin; unused buffer should be interpreted according to your contract and pricing method.
A 20-hour job at $30 per hour with a 15% time buffer, plus $100 of costs with a 10% contingency, produces 23 hours and a $800 quote basis.
No. A buffer covers estimated uncertainty; profit markup is a separate pricing decision.
No. This calculator applies separate percentages to work time and direct costs.
Yes. A zero percentage returns the unbuffered time or cost amount.
Include costs attributable to the assignment, such as mileage, supplies, access fees, or subcontracting.
Use records from comparable assignments and base it on observed overruns rather than an unsupported standard.
| Component | Calculation |
|---|---|
| Time contingency | Estimated hours × time buffer |
| Cost contingency | Direct costs × cost buffer |
| Quote basis | Buffered labor value + buffered costs |