Civil Engineering Toolkit

Essential on-site structural estimators for concrete volume, brick counts, and rebar steel weight.

Calculate concrete slab volume in cubic yards, cubic meters, and premix 80-lb / 60-lb bags.

Estimate the number of standard bricks and mortar bags required for any masonry wall dimensions.

Calculate steel rebar bar weight in kg, tonnes, and lbs based on diameter (D²/162 formula).

Calculate slope percentage (grade), degrees of incline, and roof pitch from vertical rise and horizontal run.

Calculate retaining wall blocks, vertical courses, and drainage gravel backfill volume.