
How to Estimate Concrete Bags: Complete Calculator Guide
Wondering how many bags of concrete you need for your patio, driveway, or fence posts? Getting this calculation wrong can cost you time and money. This comprehensive guide shows you exactly how to estimate concrete bags accurately, whether you’re working in imperial or metric units.
Quick Reference: Concrete Bag Yields
Before diving into calculations, here’s what you need to know about common bag sizes:
Imperial (US) Bags:
- 40 lb bag = 0.30 cubic feet
- 60 lb bag = 0.45 cubic feet
- 80 lb bag = 0.60 cubic feet
Metric Bags: