Cement Bags Calculator

Uses the same cement factor as the cement calculator for rough bag planning.

Step 1: Units

Step 2

Enter project measurements

Use decimals if needed (e.g. 3.5).

Step 3

How to use this calculator

Enter finished concrete volume directly.

What the math is doing

Approximate cement mass = volume × 350 kg/m³; bags = mass ÷ 42.6 kg per 94 lb bag.

Frequently asked questions

Blended cement?

Bag weight may differ from 94 lb.

Metric bags?

Convert kg per bag on label.

Mortar vs concrete?

Different cement factors.

Color?

Pigment separate.

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