Concrete Tools

Cement Bag Calculator

Calculate exactly how many bags of cement, sand, and aggregate you need for your concrete mix. Perfect for DIY projects and small concrete jobs.

Mix Specifications

Material Requirements

Cement Bags 0 bags
Total Weight 0 lb
Cement Weight 0 lb
Sand Required 0 lb
Aggregate Required 0 lb
Water Required 0 gallons
Estimated Cost $0

Mix Ratio Guide

  • 1:2:3: Standard mix, good strength
  • 1:1.5:3: High strength, less sand
  • 1:3:6: Lean mix, non-structural
  • 1:2:4: General purpose mix

Formula (1:2:3)

Total Parts = 1 + 2 + 3 = 6

Cement = Volume ÷ 6

Sand = Volume × 2 ÷ 6

Aggregate = Volume × 3 ÷ 6

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