By Claire WhitakerUpdated November 2026
A router speed chart for wood matches your bit diameter and the type of wood you are cutting to a safe, effective RPM range. Use the chart below as a starting point, then adjust based on how the bit sounds and how the cut looks. Following these ranges helps you avoid burn marks, chatter and bit damage.
Why RPM Matters When Routing Wood
Router bits cut by spinning fast, and the speed at the outer edge of the bit is what does the work. A large-diameter bit spinning at the same RPM as a small bit moves its cutting edges much faster, which is why bit size drives the speed setting. Too fast and you scorch the wood or chip the carbide. Too slow and the bit drags, tears fibers and can kick back.
Shopping for one? See our guide: Top 7 Wood Router in Tools for Woodworkers Compared.
Router Speed Chart for Wood by Bit Diameter
Most variable-speed routers run from roughly 10,000 to 25,000 RPM. The ranges below are common guidelines for hardwoods and softwoods. Always check the maximum RPM printed on the bit itself and never exceed it.
| Bit diameter | Softwood (pine, cedar) | Hardwood (oak, maple) |
|---|---|---|
| 1/4 inch | 22,000 to 25,000 RPM | 18,000 to 22,000 RPM |
| 3/8 inch | 18,000 to 22,000 RPM | 16,000 to 20,000 RPM |
| 1/2 inch | 16,000 to 20,000 RPM | 12,000 to 16,000 RPM |
| 3/4 inch | 12,000 to 16,000 RPM | 10,000 to 13,000 RPM |
| 1 inch and up | 10,000 to 12,000 RPM | 10,000 RPM or less |
How to Set Your Router Speed for a Cut
Start with the chart, then fine-tune on a scrap board of the same species. Work through these steps:
- Confirm the bit’s maximum RPM on its label or packaging and stay below it.
- Find the bit diameter and wood type in the chart and set the midpoint speed.
- Make a shallow test pass on scrap and listen. A steady, even hum is right; a high whine or grinding means slow down.
- Check the cut edge. Burn marks mean too fast or too slow a feed. Fuzzy, torn fibers often mean the bit is dull or the speed is too low.
- Adjust in small steps, then lock the speed and make the full-depth cut.
Adjust for Wood Type and Depth
Dense hardwoods like hard maple and white oak generate more heat, so lower the RPM slightly and take lighter passes. Resinous woods such as pine can gum up bits, which is another reason to avoid running too hot. For deep cuts, rout in two or three passes rather than one heavy pass, and keep the router moving to prevent burning.
Common Mistakes to Avoid
- Running a large bit at small-bit speeds, which leads to a slow, rough cut and possible burning.
- Ignoring the bit’s maximum RPM rating.
- Forcing the feed rate instead of letting the bit cut at its own pace.
- Skipping the scrap test, especially with a new species of wood.
- Letting pitch build up on the bit, which increases heat and drag.
Recommended gear
A variable-speed router is essential for matching the chart, since fixed-speed machines cannot dial in the right RPM. Look for a model with an electronic speed control that holds steady under load. View on Amazon
A tachometer or digital RPM meter helps you verify that the router is actually running at the speed on its dial, which is useful for older tools. View on Amazon
Carbide-tipped bits with a clear maximum RPM marking make the chart easier to apply safely. View on Amazon
If you are building your first router setup, Wood Router Power Tool Guide: Choose, Set Up and Use One Safely (2026) covers the basics of choosing and running a router. For cutting joinery, Wood Router Plunge vs Fixed (2026): Which Is Better for Your Shop? explains which base style suits deeper and repeated cuts. If you are working with larger bits, Wood Surfacing Router Bit Review: Is It Worth It? (2026) shows how speed and bit size interact on wide surfaces.
FAQ
What RPM should I use for a 1/2 inch router bit in oak?
For a 1/2 inch bit in hardwood like oak, a range of about 12,000 to 16,000 RPM is a common starting point. Adjust based on the sound of the cut and the edge quality on scrap.
Can I use high RPM for everything?
No. High RPM suits small bits, but large bits at high speed can burn wood, overheat and fail. Always match speed to bit diameter.
How do I know if my router speed is wrong?
Burn marks, a high-pitched whine, chatter or rough, torn fibers all point to a speed problem. Make a test cut on scrap and adjust in small increments.
Conclusion
A router speed chart for wood gives you a reliable starting point based on bit diameter and wood density. Test on scrap, watch for burning and chatter, and adjust in small steps. Once you find the right setting for your router and bit, keep a note of it for future projects.
Related reading
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About Claire Whitaker
Claire Whitaker is part of our editorial team and reviews and edits our woodworking guides, checking product details against manufacturer specifications and owner feedback.
