Calculate concrete perfectly every time
Estimate mix ratios, bag counts, and volume for five shapes — fast and free. No subscription, no account required.
Versatile Shape Support
Handle rectangular slabs, round slabs, footings, columns, and steps on one screen. Dimensions to results instantly.
Full Mix Design
Select grades from M10 to M50 or enter custom ratios. Get material breakdowns for cement, sand, gravel, and water.
Instant Bag Counts
Calculate the exact number of bags needed for your pour alongside volume and cost estimates.
Imperial & Metric
Switch between units with one tap. Supports cubic yards, cubic feet, cubic meters, and kg bag sizes.
Frequently Asked Questions
Is the app really free?
Yes. Mix is completely free to use with no subscriptions, hidden fees, or account registration required.
Does it work offline?
Absolutely. All calculations are performed locally on your device, so you can use it on-site without an internet connection.
How accurate are the results?
Mix uses standard geometric formulas and concrete mix design principles. We include a customizable waste factor (default 10%) to account for real-world pouring conditions.
Ready to start your next pour?
Download Mix today and take the guesswork out of your concrete calculations.