Markup vs Margin Calculator

By Trade Business Guide Research Desk

Read the three results together

Cost is the amount you intend to mark up. It might represent purchased parts, a subcontractor charge, or a whole job’s documented cost. Markup (%) is added to that cost, so it is not the percentage of sales you retain. The calculator produces Price, Profit, and Margin (%). Profit here means price minus the entered cost. If the cost field omits labor, travel, or allocated overhead, the displayed profit is not business net profit.

The input has a preset markup of 50%; replace it with your own intended figure. A positive markup can still leave inadequate contribution after expenses excluded from the cost field. Before using the result as a customer quote, check which items belong in cost and whether taxes or fees must be handled separately. The tool cannot decide the appropriate markup for a market or trade.

How the calculation works

price = cost × (1 + markup / 100). Then profit = price − cost and, if price is positive, margin = 100 × profit / price. Cost is the denominator of markup; price is the denominator of margin. This is why a 50% markup produces a 33.333…% margin. The calculator permits a zero cost input, but a nonpositive price leaves margin unavailable because there is no positive sales base.

Example assumptions — not benchmarks: cost $100 and markup 50%. Multiplying $100 by 1.50 produces a $150 price. Subtracting $100 leaves $50 profit. Dividing $50 by $150 and multiplying by 100 gives 33.333…% margin, displayed as 33.3%. These values show the arithmetic, not a recommended selling strategy.

Exact conversion reference

The table treats each markup as a percentage of cost. Margin is calculated as 100 × markup / (100 + markup); the fractions make the conversions exact.

To reverse the question and find markup from a desired margin below 100%, divide the margin percentage by 100 minus that margin, then multiply by 100. That reverse conversion is explanatory; this calculator’s form takes markup as input.

Use the right basis when quoting

A target margin should not be entered directly in the Markup (%) field. For example, a desired 50% margin requires a 100% markup on cost, as the table shows. When comparing proposals, ask whether a quoted percentage refers to cost or selling price. The distinction is especially consequential when parts, labor, and overhead are combined into one cost base.

For pricing from a specified target margin, use job pricing. Check realized margin on completed work with profit margin. The overhead percentage tool and labor rate tool can help build a more complete cost basis.

Keep the cost base attached to each quote. A percentage copied from a parts-only estimate will not necessarily work on a full job that includes labor and subcontractors. Review the realized margin after completion.

Markup questions

Last updated: September 24, 2026