Mix – Concrete Calculator

Calculate concrete mix ratios, bag counts, material quantities, and total
volume for six shapes in one app. Mix is a concrete calculator for
contractors and DIYers who need fast, accurate estimates for slabs, steps,
footings, columns, round slabs, and curbs and gutters.

WHAT IT CALCULATES

Mix handles six shape types on one screen: rectangular slab, round slab,
footing, column, steps, and curbs and gutters. Enter dimensions and get
results instantly for driveways, patios, footings, fence post bases,
staircases, and curb and gutter runs.

Steps are a real gap in many free concrete calculator apps. Most stop at slab
and footing math. Mix includes a dedicated steps calculator so you can
estimate stairs without forcing the job into a slab formula. Curbs and
gutters are another use case many simple apps skip.

CONCRETE MIX CALCULATOR

Mix is more than a concrete volume calculator. Choose a mix grade from M10 to
M50, or enter a custom mix ratio for your job. For each result you get a full
material breakdown: cement, sand, aggregate, and water for the exact volume
you plan to pour.

Bag count is shown with the material breakdown, so you can estimate concrete
bags and bulk materials in one result. Enter an optional price and Mix adds an
estimated cost. If you need a cement calculator, concrete mix calculator, and
concrete volume calculator, Mix does all three in one screen.

POUR LIST

Most jobs are not one pour. Use the pour list to add slabs, footings, steps,
curbs, gutters, and other pours to the same project. Mix totals the volumes so
you can estimate the full job before ordering ready-mix or bags.

HOW TO USE IT

Select a shape and enter the measurements. A labeled diagram shows which
dimension goes where, so there is no guesswork. Choose a mix grade or enter a
custom ratio. Set your waste factor, add an optional price, and tap
Calculate. Mix returns volume, bags needed for standard bag sizes, and full
material quantities.

Save the result to your pour list or history, then keep adding shapes until
you have the total concrete volume for the job.

UNITS

Mix works in imperial and metric. Imperial output shows cubic yards and cubic
feet. Metric output shows cubic meters and kg bag sizes. If you need a
concrete calculator in feet or a cement calculator in cubic meters, you can
switch units with one tap.

WHY MIX

Many concrete apps stop at volume and bag count. Mix adds mix ratios,
materials, labeled diagrams, steps, curbs and gutters, waste factor, cost
estimate, and pour list totals in one app. No subscription. No account. No
overbuilt interface.

Mix uses a clean Material 3 layout that is easy to use on a job site. Large
fields, clear diagrams, and fast results make it practical for contractors and
simple enough for DIY projects.

USE CASES

Use Mix for driveway slabs, patio pads, sidewalks, round pads, deck footings,
fence post holes, foundation footings, retaining wall sections, concrete
stairs, and curb and gutter runs. It works as a concrete slab calculator, a
footing concrete calculator, a steps calculator, and a curb and gutter
concrete calculator in one app.

COMMON QUESTIONS

How many bags of concrete do I need for a 10x10 slab? A 4-inch slab is about
1.23 cubic yards. At a standard M20 mix, that is roughly 37 bags of 80 lb
concrete. Enter 10 ft x 10 ft x 4 in and Mix calculates it instantly.

How do I calculate concrete for steps? Select Steps, enter the number of
steps, rise, run, and width, and Mix calculates total volume and bag count for
the staircase.

How do I estimate curbs and gutters? Select the curbs and gutters shape, enter
the run dimensions, and Mix calculates concrete volume, bag count, and
material quantities.

How do I total multiple pours? Save each result to the pour list and Mix adds
the volumes so you can estimate the whole project before you order concrete.