Setting an hourly rate by copying competitors is how solo firms quietly lose money. This calculator works backward from your real numbers: total annual cost and the hours you can actually bill, then layers on realization and a profit margin to produce a rate that keeps the lights on and pays you.
How it works
The break-even rate is total annual cost divided by realistically billable hours. A quote rate then adds margin and corrects for collection losses:
total cost = target salary + total annual overhead
break-even = total cost / annual billable hours
with margin = break-even / (1 − profit margin)
quote rate = with margin / realization rate
Dividing by (1 − margin) adds the margin as a markup on cost, and dividing by
realization grosses the rate up so that the amount you actually collect still
hits your target.
Example and tips
A solo wanting 120,000 in salary with 80,000 of overhead has 200,000 of total cost. Billing 1,400 hours a year gives a break-even of about 143 per hour. Add a 15 percent margin and 90 percent realization and the rate to quote is about 187 per hour. Be honest about billable hours: assuming 2,000 billable hours when you can only deliver 1,400 understates your break-even by a third and guarantees you work below cost.