Launching soon on the App Store, for iPhone
MudMath
Calculators for concrete, gravel, block and 12 more, with your own prices.
MudMath works out how much concrete, block, brick, stone or soil a job needs, in yards, bags and tons, and it can tell you what that'll cost at your own supplier's prices. It has calculators for concrete, block, brick, gravel, asphalt, topsoil, mulch, sand, pavers, rebar, retaining walls, sod and grass seed, and it shows the formula behind every answer so you can check it yourself.

Every calculator is free
Every calculator is free, with no ads:
- concrete for slabs, thickened-edge slabs, footings, walls, piers, columns, post holes, steps and curbs, and fast-setting mix for fence and deck posts;
- concrete block and brick, with the mortar, grout and bond beam that go with them;
- gravel and crushed stone, asphalt, topsoil, mulch, sand, pavers with their base and edging, and rebar with lap splices;
- retaining wall block, sod and grass seed, and flatwork accessories such as forms, stakes and chairs;
- odd-shaped beds built from several sections;
- results in cubic yards, bags and tons, with a waste factor and your supplier's own weights;
- feet and inches, or metric;
- the formula behind every result, one tap away;
- your own prices on one material of your choice, so you can see what it costs.
Pro
Pro adds your own prices on every material, saved jobs and a PDF estimate for your customer.
- Pricing for every material. Your own prices per yard, bag, ton or piece, plus delivery, on every material, so every result shows its cost.
- Saved jobs. Every pour and every material for a job kept together, with running totals.
- A customer estimate PDF with your logo, line items, labor and markup, which you can send to the customer from your phone.
- CSV export and backup, so the takeoff can go into your spreadsheet and your jobs and price lists can come with you to a new phone.
Where the numbers come from
Bag yields, block counts and weights come from manufacturers' data sheets and from standards bodies, and every one is cited in the app. Where nobody publishes a single trustworthy figure, as with loose gravel, whose weight changes with the quarry, the size and how wet it is, MudMath asks for the number your supplier quotes instead of guessing.
Pricing
These are the prices we plan to launch Pro at, in US dollars. The App Store shows the final price in your own currency before you buy.
| Plan | Price |
|---|---|
| Yearly, with a 7-day free trial | $44.99 a year |
| Monthly | $6.99 a month |
| Lifetime, paid once | $99.99 |
MudMath brings up Pro only when you tap a Pro feature, and it never interrupts a calculation to sell you something.
Your data
There's no account, no ads and no tracking. Your jobs, prices, customer details and logo are stored on your iPhone, estimates and exports go only where you send them, and the only time anything you've written reaches us is when you choose to send us feedback. The privacy policy has the details.
A note on accuracy
Every result is an estimate built from the dimensions you enter and the published figures behind each material. Real sites vary, so allow for your ground and your forms, follow the manufacturer's directions, and check quantities with your supplier before you order.