Concrete & masonry
Mortar for Blocks Calculator
Your measurements : area, product consumption, weight per bag. Your estimate : approximate mass, bags to buy.
How the calculation works
Mortar for Blocks Calculator
Approximate mass = Area × Product consumption × (1 + Waste allowance / 100); Bags to buy = round up(Approximate mass ÷ Weight per bag)Before you order
- Use the coverage, yield and dimensions printed on your product. Waste allowance is adjustable; real cuts and site conditions may change the order.
- Planning estimate only. This is not a structural design, a safety approval or a local code check.
Worked example
- Area
- 20 m²
- Product consumption
- 4 kg/m2
- Weight per bag
- 25 kg
- Waste allowance
- 10 %
Approximate mass 88 kg
Bags to buy 4