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.