Blast Pattern Area Calculator
Computes the ground area covered per hole from the burden and spacing pattern.
Enter Values
Before you rely on this: First-pass guide only. Verify safety-critical or regulated work against the relevant standards, your project requirements and a qualified professional.
How to use this calculator
- Enter the burden, spacing and number of holes.
- Press Calculate.
- Read the area each hole covers and the total.
How it works
Pattern area = burden × spacing × number of holes — the ground each hole is responsible for breaking.
Worked example
50 holes, 3 × 3.5 m. 10.5 m² per hole, 525 m² total.
Frequently asked questions
How is this different from blast area?
Blast area is the block's length × width; pattern area is holes × (burden × spacing), which should be close for a full pattern.
Related tools
- Blast Hole Count Checker
- Blast Volume Calculator
- Blast Pattern Designer
- Blast Timing Delay Calculator
- Bench Height Checker
- Blast Area Calculator
Explore more in Mining, Quarry, Earthworks, Drill & Blast.
Cite this tool
Zerdly. (2026). Blast Pattern Area Calculator. Retrieved from https://www.zerdly.com/tools/blast-pattern-area-calculator/
Tip: Enter any known values to calculate the remaining results.
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