Guides

Metric Measuring Guides

Practical measuring notes tied to the formulas used by the calculators on this site.

How to Measure a Room for Paint

Measure a rectangular room for the paint calculator using wall length, width, height, openings, coats, coverage, waste, and container size.

Relevant calculator: Paint calculator

Measure rectangular flooring zones and apply waste before rounding up to whole flooring boxes.

Relevant calculator: Flooring calculator

Measure rectangular floor or wall tile areas, convert tile size from millimetres, apply waste, and round to whole tiles and boxes.

Relevant calculator: Tile calculator

Estimate metric concrete volume for slabs, footings, and cylindrical post holes using the same formulas as the concrete calculator.

Relevant calculator: Concrete calculator

Measure rectangular bulk-material zones, convert depth from millimetres to metres, apply waste, and estimate tonnes or litre bags.