Calculated result
6bags
Cement bags to batch
Formula
CONC-MIX-0015.94 ft³
Cement volume
0.44 yd³
Sand volume
0.88 yd³
Aggregate volume
Concrete calculator
Concrete mix calculator
Volumetric cement, sand and aggregate split from a known wet volume using a stated mix ratio and dry-volume factor.
Reviewed formula · v1.0.0
Project inputs
Enter field measurements. Unit conversion happens before the reviewed formula is applied.
All values can be refined when you edit the estimate. This tool does not replace field verification or local requirements.
Transparent cost view
Use visible planning values, then replace them with actual job costs before quoting.
Material cost$510
Direct cost$900
Overhead + contingency$90
Markup + tax$119
Estimated project total$1,109
How this calculator works
A transparent concrete mix calculator takeoff.
This calculator splits a known wet concrete volume into cement bags, sand and coarse aggregate using a stated volumetric ratio and a documented dry-volume factor — not a strength mix design.
Worked example. Example: 1 yd³ of wet concrete at a 1:2:4 ratio with a 1.54 dry-volume factor needs 5.94 ft³ of cement, which rounds to 6 bags at 1.0 ft³ each, plus 0.44 yd³ of sand and 0.88 yd³ of aggregate.
- 1. Start from a reviewed wet volume, not a guessed pad size.
- 2. Enter the volumetric parts you intend to batch, such as 1:2:4.
- 3. Keep the dry-volume factor visible; it is a planning convention, not a laboratory yield.
Need the broader workflow? Read the concrete planning guide.
Questions
Common questions about this concrete mix calculator.
Does this produce a PSI or mix design?
No. Volumetric parts do not replace an ACI or supplier mix design, water-cement ratio or trial batch.
Why is 1.54 shown?
Many field manuals multiply wet volume by about 1.54 to estimate dry material volume. Replace it when you have a measured yield.