Primer calculator

Size the primer coat before the paint order

Apply your primer coverage and coat count to the measured walls and ceilings, then round to purchasable packs.

Use a layout you’ve already measured

Choose the layout for this job.

Choose products and enter your rates against the saved measurements. The layout stays available for your next job.

Select the room, wall or home you want to price.

Start with a single room. Your measurements stay in this browser for future estimates.

Measure. Measure the room length, width and wall height. Add doors and windows to their walls.
Save. Use “Use for estimate” after saving, or return here to select the layout.
Estimate. Select primer in the paint system and enter its coats, coverage, pack size, wastage and rates. Review the buying quantity, assumptions and missing rates before saving.

The wall area left after openings, plus any measured reveals.

Coverage and wastage are applied before rounding to whole primer packs.

Add material and labour rates to see a cost. Missing rates stay visible in the result.

Buying quantities come from your layout and product details. Check dimensions and specifications before ordering.

Opening your workspace…