Punch in your cost on the job, the net margin you want to keep, the overhead the sale must recover, and a contingency for surprises. The calculator returns the price to quote and shows the arithmetic most estimators skip: to keep a 25% net margin on an $8,000 job — overhead recovered, 5% contingency held — you must quote $13,333, a 58.7% markup on cost. Quoting a 25% markup instead is where the money quietly leaks.
Markup is measured on cost; margin on the sale price. Marking an $8,000 job up 25% quotes $10,000 — but $2,000 on a $10,000 sale is only a 20% margin before overhead touches it. This calculator works backwards from the margin you keep, which is the number that pays you.
Because margin, overhead and contingency all live inside the sale price. At the defaults, $8,000 of cost plus 5% contingency makes $8,400 of true cost; recovering $1,600 of overhead and keeping $3,333 of profit forces the quote to $13,333 — a 58.7% markup protecting a 25% margin.
The slider runs 0–20% of cost, and the 5% default suits predictable work — demolition, weather exposure or old-building unknowns justify more. Contingency you did not spend becomes margin; contingency you did not price becomes loss.
Every calculator runs from one config: your name, your colours, your prices. Brand it below, open any tool from the catalogue, and finish a quote — the lead lands in the table here the moment the estimate unlocks. On your own site the widget works exactly like this.
| Captured | Name | Contact | Tool | Job value |
|---|---|---|---|---|
| No leads yet — run any tool in the catalogue and finish the quote. | ||||
| Tenants signed | Avg. rent | Monthly | Annual |
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