ConcreteCalc

ConcreteCalc is the fast, no-nonsense estimating calculator built for concrete contractors and pros who need an answer on the jobsite — not a spreadsheet.

Pick a pour, punch in your dimensions, and instantly see the volume, the number of pre-mix bags, the ready-mix truckloads, and the estimated cost. No ads. No sign-up. No internet required.

Calculators for every common pour

• Slab / Floor — rectangle, circle, or by total area
• Footing — strip & spread footings, with quantity
• Wall — foundation & retaining walls
• Round Column — sonotubes, piers & posts
• Stairs — poured concrete steps
• Curb & Gutter — curb with gutter flag
• Post Holes — deck, fence & sign posts
• Gravel / Base — sub-base & backfill, in yards and tons
• Rebar Grid — two-way mat: total feet, bar count & stock lengths

Everything you need to order

• Volume in cubic yards or cubic meters
• Pre-mix bags for 40, 60 & 80 lb (or 20, 25 & 40 kg) — all shown at once
• Ready-mix truckloads, based on your truck size
• Estimated cost using your price per yard
• Built-in waste factor so you order enough

Built for the jobsite

• Clean, big, tap-friendly layout
• Set your concrete (or gravel) price right on each calculator
• US or metric units
• Light, dark & system themes
• Choose your currency ($, £, €, ¥, ₹)
• Works 100% offline

Estimates are guidance only — concrete yields vary by mix, slump and placement, so always confirm final quantities with your ready-mix supplier before ordering.