
Solicrete: Concrete Calculator
Slab, Post Hole & Bag Counter
0 ratings
Free
In-App Purchases
Rating summary
About
Know exactly how much concrete to buy before you drive to the store.
Pick what you're pouring, enter the sizes, and Solicrete shows the answer right away: cubic yards, cubic feet, and how many 80, 60 or 40 lb bags to grab, with extra for waste.
JUST SAY IT
Tap the mic and say "shed pad, ten by twelve, four inches" or "twenty post holes, ten inch, three feet deep". The sizes fill themselves in. Handy on site with dirty gloves.
SIX SHAPES
- Slab: patio, shed pad, walkway
- Round slab: hot tub pad, round patio
- Post holes: fence, deck and mailbox posts (the post is subtracted)
- Footing: wall and foundation strips
- Column: piers and tube forms
- Steps: stairs and stoops
SEE IT BEFORE YOU POUR
A 3D preview of your form fills with concrete as you change the numbers. Turn it with a finger.
BAGS OR A TRUCK
Bags are counted and stacked on a pallet, with the weight you'll haul. Past one yard, Solicrete tells you what to order from the ready-mix plant, rounded to the quarter yard.
FEET AND INCHES
Enter lengths the way a tape measure reads: 10' 6".
SAVE YOUR PROJECTS
Keep "Shed slab" and "Back fence" for the trip to the store and share the bag list with your crew.
FREE TO CALCULATE, PAY ONCE
Every calculator is free, with no ads and no account. Solicrete Pro is a single purchase (no subscription) for unlimited saved projects and sharing.
Estimates are for planning. Check the bag label and local codes before you pour.
Show more
+1
What's New in Solicrete
1.0
November 9, 2026
1
Subscriptions & In-App Purchases
$4.99
Solicrete Pro
Unlimited projects and sharing. Pay once.




