Concrete Mix Design Calculator

Concrete Mix Design is a fast, practical concrete mix calculator for civil engineers, technicians, and students. Generate accurate concrete dosage calculations using three industry-standard mix design methods: Dreux-Gorisse (France / francophone practice), ACI 211.1 (United States), and BRE / DoE (United Kingdom & EU).

Enter your project requirements and get instant results for cement, water, sand, gravel, and water/cement ratio (w/c) — with every assumption visible so a reviewer can audit the numbers.

KEY FEATURES
- Three mix design methods in one app: Dreux-Gorisse, ACI 211.1, BRE / DoE, switch any time
- Concrete class selection: B20, B25, B30, B35, B40
- Slump class: S1, S2, S3, S4
- Exposure class (Normal / Aggressive) drives w/c caps and minimum cement
- Maximum aggregate size (Dmax): 8, 16, 25, 31.5 mm
- Cement strength class per EN 197-1: 32.5, 42.5, 52.5 MPa, plus custom 25–60 MPa
- Aggregate shape (BRE): crushed vs uncrushed, correctly bumps water demand
- Air-entrained option (ACI): freeze-thaw / severe exposure tables applied
automatically
- Sand fineness modulus (ACI): FM 2.0–3.5

TRANSPARENT RESULTS

- Governing w/c ratio shown on every result
- Applied minimum cement content per method
- Yield check (1 m3 absolute volume balance)
- Warnings flagged when assumptions are stretched

COST ESTIMATION

- Enter unit prices for cement bags, sand, gravel, and water
- Get cost per m3 and total cost for your selected volume
- Choose your currency

VOLUME SCALING

- Scale mix quantities for 0.5, 1, 2, or 5 m3
- Quantities update instantly

SAVE & REUSE

- Save concrete mix designs locally on your device
- Reuse saved mixes as templates for new projects
- Method badge on every saved mix (Dreux / ACI / BRE) so you can tell them apart at a glance
- Copy mix results with one tap
- English and French language support

PRACTICAL & LIGHTWEIGHT

- No account or sign-up required
- Works fully offline
- Data stored locally only
- Clean, distraction-free interface

IMPORTANT NOTE
Results are preliminary concrete mix designs. Trial batches and laboratory
testing are required before use on site.

WHO IS THIS FOR?
Civil engineers, construction technicians, concrete laboratory staff, building
contractors, ready-mix and precast producers, and engineering students learning the Dreux method, ACI 211, or BRE / DoE.

Concrete Mix Design: fast, reliable concrete dosage calculation for the field and the office — Dreux-Gorisse, ACI 211, BRE / DoE.