Drill Consumables Calculator
Estimates drill bit consumption from metres drilled and expected bit life.
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 total metres to drill and the bit life (m per bit).
- Press Calculate.
- Read the number of bits required.
How it works
Bits required = total metres ÷ bit life, rounded up. Bit life varies a lot with ground conditions, so add spares.
Worked example
1,500 m, 800 m/bit. 2 bits (carry spares).
Frequently asked questions
What affects bit life?
Rock hardness/abrasiveness, feed pressure, flushing and bit type. Hard, abrasive ground shortens it sharply.
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Cite this tool
Zerdly. (2026). Drill Consumables Calculator. Retrieved from https://www.zerdly.com/tools/drill-consumables-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.