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Chipload Calculator
Chipload Calculator
Find a starting chipload for CNC router bits, then fine-tune on the machine. Enter feed, spindle speed, and flutes — or flip the mode to solve for feed rate from a target chipload.
Calculate
Your chipload
Feed ÷ (RPM × flutes)
0.016in / tooth
Live calc — change any field and the result updates. Starting point only; confirm on your machine and material.
Starting chipload ranges STARTER / EXAMPLE
Industry-style starting ranges in inches per tooth for compression-style shank tools. These are example starters only — not a substitute for the manufacturer’s chart for the bit you are running. Always confirm on the machine.
| Material | 1/4 in | 3/8 in | 1/2 in | 5/8 in | 3/4 in |
|---|---|---|---|---|---|
| Softwood | 0.010–0.018 | 0.014–0.024 | 0.018–0.030 | 0.020–0.032 | 0.022–0.035 |
| Hardwood | 0.006–0.012 | 0.008–0.016 | 0.010–0.020 | 0.012–0.022 | 0.014–0.024 |
| MDF / Particle | 0.008–0.016 | 0.012–0.022 | 0.015–0.028 | 0.018–0.030 | 0.020–0.032 |
| Plywood / Veneer | 0.007–0.014 | 0.010–0.018 | 0.012–0.022 | 0.014–0.024 | 0.016–0.026 |
| Soft plastic | 0.004–0.010 | 0.006–0.012 | 0.008–0.014 | 0.008–0.015 | 0.010–0.016 |