SpecMeasureProduct quantity calculator

Floor levelling calculator

Levelling compound calculator

Estimate the number of self-levelling compound bags needed from the floor area, average application depth, selected product and wastage allowance.

Levelling

Levelflex Gel

Self-levelling gel for internal floor preparation.

Levelflex Gel 20 kg bag
✓ Data checked 17 Aug 2026
Levelling details
Calculation basis1.50 kg/m²/mm

Quantity result

73bags

Includes 10% wastage

Calculated
1,314 kg
With wastage
1,445.4 kg
Pack size
20 kg
1.50 kg/m²/mm

Estimate only. Confirm suitability and current guidance in the manufacturer's technical data sheet.

How it works

How to use this calculator

Choose the product you intend to use, enter the measured project information and review the estimated pack quantity. SpecMeasure applies the selected product's coverage information and your chosen wastage allowance.

  • Enter the floor area in square metres.
  • Measure or estimate the average depth in millimetres.
  • Choose the levelling product you plan to use.
  • Add wastage for floor variation and site handling.

Plan more accurately

What affects the estimate?

Real-world consumption varies with the substrate, application method and installation conditions. Check these factors before ordering:

  • Average depth matters more than the deepest isolated point.
  • Floor undulation and local repairs increase consumption.
  • Products have different pack sizes and coverage rates.
  • Substrate priming and preparation remain product-specific.