Painting Quote Calculator

Stop estimating paint by eye. JobCalc's painting quote calculator works out exactly how many tins of paint each room needs, factors in the number of coats, and adds your labour to produce a professional quote in minutes.

Paint tins per room size

Enter the width and height of each wall and tick whether the ceiling is included. JobCalc calculates the paintable area, deducts standard door and window openings, and applies the coverage rate for your paint type — emulsion, silk, matt, primer, masonry, gloss, satinwood or eggshell. The result is the precise number of litres you need, rounded up into whole tins at your chosen size, so you buy what you'll actually use.

JobCalc painting quote calculator showing paint tins per room size and coats
The painting quote calculator in JobCalc

Coats and coverage

Most jobs need two coats, but not all. JobCalc lets you set one, two or three coats per paint, and multiplies the area accordingly. Because coverage varies between products, you can override the rate for each paint type in settings to match the exact brand you roll on site. A wastage percentage is added on top so you order enough for touch-ups without overspending.

Multiple paints on one quote

A single room often needs a primer, an emulsion and a gloss for the woodwork. JobCalc lets you add as many paints as a job requires, each with its own type, coat count, tin size and cost. Every paint is calculated separately and totalled together, so a three-product room is quoted as accurately as a single emulsion.

Labour and a finished quote

Set your labour rate by the day, by the hour or per square metre, add any extra costs, and JobCalc produces a clear total with your profit margin and VAT applied. Export a professional PDF, email it to the customer, or share it by WhatsApp straight from the job. Start your free 30-day trial and turn your next painting job into a quote before you pack up.

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