Blast Perimeter Calculator
Computes the perimeter of a blast block for exclusion-zone and edge-protection planning.
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 blast block length and width.
- Press Calculate.
- Read the perimeter.
How it works
Perimeter = 2 × (length + width) — useful for exclusion-zone and edge-protection planning.
Worked example
40 m × 25 m. Perimeter = 130 m.
Frequently asked questions
Why do I need the perimeter?
To plan edge protection, stemming for perimeter holes and the exclusion/clearance zone around the blast.
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Explore more in Mining, Quarry, Earthworks, Drill & Blast.
Cite this tool
Zerdly. (2026). Blast Perimeter Calculator. Retrieved from https://www.zerdly.com/tools/blast-perimeter-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.