Flat Rate Pricing Calculator
Build a fixed price for a service call from the real costs behind it — burdened labor, the trip, parts, overhead and your target margin — and see the profit and margin the final number actually carries.
Price = Total cost ÷ (1 − Margin), rounded up$140.25 ÷ 0.70 = $200.36 → $205.00Pricing to a 30% margin means every dollar of this price keeps 30.0% after direct costs and overhead. The profit above is what's left before your own net income.
Electrical: where the number comes from
An electrician prices a ceiling-fan install as a flat rate: two hours on site with a burdened rate, a trip across town, the box and wiring supplies, and a 35% target margin. (Illustrative example — not market data.)
| Input | Value |
|---|---|
| Labor | 2 hrs × $55 burdened = $110 |
| Trip cost | $30 |
| Materials | $85 (fan box, wire, connectors) |
| Overhead | 15% of direct cost |
| Target margin | 35% |
| Rounding | nearest $5 |
Result: Quote $400 — $141.25 gross profit, 35.3% margin
The achieved margin lands slightly above target because of rounding up. The effective multiplier on cost is 1.55× — if you compare against a price book that 'marks parts up 3×', you're looking at the same economics described differently.
Load this example into the calculatorThe calculation
| Direct cost | $110 + $30 + $85 = $225.00 |
| Overhead | $225 × 15% = $33.75 |
| Total cost | $258.75 |
| Raw price | $258.75 ÷ 0.65 = $398.08 |
| Rounded price | $400 |
| Profit | $400 − $258.75 = $141.25 |
| Achieved margin | $141.25 ÷ $400 = 35.3% |
More worked examples
All examples are illustrative — real inputs come from your own costs. Each loads into the calculator above.
How this calculator works
Every result comes from the formulas below — the math shown is the math used. Change any input and results update instantly in your browser; nothing is sent to a server.
- Labor cost:
laborCost = Hours × Burdened RateUse your burdened rate — the Labor Burden Calculator computes it if you don't know it. - Direct cost:
directCost = Labor + Trip + Materials + Other - Overhead allowance:
overhead = directCost × Overhead % - Total cost:
totalCost = directCost + overhead - Raw price (margin-correct):
rawPrice = totalCost ÷ (1 − Margin %)Dividing prices to the margin; multiplying by (1 + markup) understates it. - Rounding:
price = ceil(rawPrice ÷ RoundTo) × RoundTo - Profit and achieved margin:
profit = price − totalCost ; margin = profit ÷ price × 100Computed from the FINAL rounded price, not the raw one. - Markup equivalence:
markup = profit ÷ totalCost × 100Pricing to a 50% margin requires a 100% markup on cost — the two numbers always differ.
What the result means
The flat-rate price is what the job costs you — burdened labor, the trip, parts, overhead — divided so the price keeps your target margin. The profit row is real dollars toward net income; the achieved margin is measured on the final rounded price you actually quote, which is why it sits a hair above target.
When to use it
Use it to price recurring service calls and small repairs as one fixed number — water heaters, fan installs, capacitor swaps, TV mounts — where the customer wants the price before you arrive.
Common mistakes
- Using the technician's wage instead of the burdened rate — payroll taxes and comp don't pay themselves.
- Marking parts up 2.5× and then applying a margin on top — profit gets double-counted and the price scares customers off.
- Letting the trip be free: fuel, van wear and drive time are real costs every call must carry.
Frequently asked questions
What is flat rate pricing?
Flat rate pricing charges one fixed price for a job, set before the work starts, instead of billing hours plus materials as they accrue. Customers get price certainty; contractors who work efficiently keep the difference between the estimate and the actual time spent.
How do I calculate a flat rate price?
Add the true costs of the job — burdened labor hours, the trip, materials at cost, permits — then add an overhead allowance, and divide by (1 − your target margin). Round the result to a quotable number. The key is that labor must carry its full burden and overhead must be recovered on purpose, not left to a rule-of-thumb multiplier.
How much should I charge for a service call or trip?
The trip costs what it costs: fuel, vehicle wear, and the unbillable drive time. Many contractors fold it into a minimum service charge — the smallest price at which sending a truck still makes sense. This calculator suggests one based on your labor rate, trip cost, overhead and margin; treat it as a starting point, not a market standard.
Should I use markup or margin when pricing parts?
This tool uses one target margin over the whole job rather than a separate parts multiplier, which avoids double-counting profit. If you compare against a price book that marks parts up 2× or 3×, check the 'effective multiplier on cost' the result implies — different presentations, same underlying economics.
Is flat rate better than charging hourly?
They trade risks. Hourly shifts time risk to the customer and penalizes your efficiency; flat rate rewards it but makes you own the estimate. Flat rate also answers the customer's first question — 'what will this cost?' — before you've seen the job. The right margin math underneath is identical either way.
Before the customer sees the number, check what margin the final price really carries.
Verify the margin on this price →Related tools and guides
Flat Rate Pricing Calculator is part of RateCraft, a set of free pricing and estimating tools for contractors and service businesses. Results are calculated entirely in your browser and are estimates for planning purposes — see our disclaimer and methodology.