Skip to content

Plankley

Calculators
Trades
Projects
How we calculate
About

Home
Concrete and mortar
Mortar mix ratios explained

Mortar mix ratios explained

By the Plankley team · Last checked 19 October 2026

Work it out: the mortar calculator shows the sum for your own measurements, with every figure editable.

Worked example: Order: 3 bags of cement and 0.30 t of sand.

Open the mortar calculator

Safety: A quantity and geometry estimate, not a design. It's not a substitute for a builder, structural engineer or building control. For anything load-bearing, retaining, on a boundary or that people walk on or lean against, get professional advice and check Building Regulations and planning rules.

Check with the source. Rules differ between England, Wales, Scotland and Northern Ireland and can change. Follow the official guidance linked on this page, not our summary.

On this page

What a ratio means
Where ratios are specified
Wet vs dry volume
Pre-mixed mortar

What a ratio means

Where ratios are specified

Wet vs dry volume

Pre-mixed mortar

Related pages

Concrete and mortar guides
How many bricks per square metre

All calculators
Decorating
Concrete and mortar
Brickwork
Landscaping
Decking and fencing
Tiling
Flooring
Plastering
About
Methodology
Editorial policy
Advertising disclosure
Corrections
Privacy

Plankley is an independent site with UK calculators for DIY and the trades. Every figure is a planning estimate: check your supplier's or maker's figures before ordering. We don't test products.

© 2026 Plankley