Choosing the correct sharpening angle is the single most important decision you'll make when sharpening a knife. Too steep, and your blade becomes dull and thick. Too shallow, and your edge chips on the first cut.
This guide breaks down the exact angles for every knife type, with a visual chart you can reference anytime.
Knife Sharpening Angle Chart
Quick ReferenceSave or bookmark this chart for easy reference. All angles are per side (not total included angle).
| Knife Type | Angle (per side) | Total Included Angle | Edge Characteristics |
|---|---|---|---|
| Japanese Kitchen Knives | 15° | 30° | Razor-sharp, delicate, precision cutting |
| German/Western Kitchen Knives | 20° | 40° | Sharp, durable, all-purpose |
| Fillet Knives | 12-15° | 24-30° | Extremely sharp, flexible, delicate cuts |
| Pocket Knives (EDC) | 20-25° | 40-50° | Durable, chip-resistant, everyday carry |
| Hunting/Survival Knives | 20-25° | 40-50° | Strong, impact-resistant, field use |
| Cleavers/Heavy Choppers | 25-30° | 50-60° | Very durable, high-impact tasks |
| Razors/Straight Razors | 8-12° | 16-24° | Ultra-sharp, extremely delicate |
| Scissors (household) | 30-40° | 60-80° | Blunt, durable, shearing action |
| Axes/Hatchets | 20-30° | 40-60° | Varies by type (see our axe guide) |
| Chisels (woodworking) | 25-30° | 25-30° (single bevel) | Single bevel, precision cutting |
Note: These are general guidelines. Always check your manufacturer's recommendations when possible.
Print This ChartUnderstanding Sharpening Angles: Per Side vs. Included Angle
When discussing sharpening angles, there's often confusion between "per side" and "total included angle." Here's the critical difference:
Angle Per Side
What We Usually MeanThis is the angle between the blade face and the sharpening surface on ONE side of the knife.
Example:
"Sharpen your chef's knife at 20°" means 20° on the left side and 20° on the right side.
Total Included Angle
Both Sides CombinedThis is the total angle formed by both bevels combined (left side + right side).
Example:
If you sharpen at 20° per side, the total included angle is 40° (20° + 20°).
Important: Most sharpening guides, videos, and professionals refer to the angle per side. When someone says "sharpen at 20 degrees," they mean 20° per side (40° total). Our chart above uses the per-side convention.
Kitchen Knives: 15° vs. 20° vs. 25°
The most common question we get: "What angle should I sharpen my kitchen knife?" Here's the breakdown:
15° Per Side — Japanese Kitchen Knives
Shun, Global, MAC, Miyabi, TojiroJapanese knives are made from harder steel (typically 60-62 HRC) and are ground to a thinner, sharper edge. The 15° angle produces a razor-like edge ideal for precision work: thin slicing, sushi prep, and delicate vegetables.
✓ Pros
- • Incredibly sharp
- • Effortless slicing
- • Precision cuts
✗ Cons
- • More fragile
- • Can chip on bones
- • Requires careful use
20° Per Side — German/Western Kitchen Knives
Most Popular / RecommendedWüsthof, Henckels, VictorinoxThe sweet spot for most kitchen knives. German knives are made from softer steel (56-58 HRC) and ground at 20° per side. This creates a balance between sharpness and durability—sharp enough for everyday cooking, tough enough to handle harder ingredients.
✓ Pros
- • Great all-around sharpness
- • Durable edge
- • Forgiving for beginners
- • Versatile for all tasks
✗ Cons
- • Not as sharp as 15°
- • Requires more frequent honing
Our Recommendation: If you're unsure what angle your knife needs, 20° per side is the safest choice. It works for 90% of kitchen knives and provides an excellent balance of performance and longevity.
25° Per Side — Heavy-Duty Kitchen Knives
Rare in Kitchen UseThis angle is uncommon for kitchen knives but appropriate for heavy-duty tasks: breaking down chickens, cutting through cartilage, or processing tough squash. Some cheap kitchen knives are factory-sharpened at this angle.
✓ Pros
- • Very durable
- • Chip-resistant
- • Long-lasting edge
✗ Cons
- • Not very sharp
- • Struggles with delicate tasks
- • Feels dull compared to 15-20°
Specialty Knives & Their Angles
12-15° Fillet Knives
Fillet knives need an ultra-sharp, flexible edge for precision work. The shallow angle (12-15° per side) creates a razor-like edge that glides through fish, poultry, and delicate proteins with minimal resistance.
Trade-off: This edge is fragile. Never use a fillet knife on bones, frozen foods, or hard surfaces. It's designed purely for soft tissue.
20-25° Pocket Knives & EDC
Everyday carry (EDC) knives need to withstand abuse: cutting cardboard, rope, zip ties, and unpredictable materials. The 20-25° angle provides a robust edge that resists chipping and rolling.
Popular EDC brands and their factory angles:
- Benchmade: 20-22° per side
- Spyderco: 20° per side (recommended)
- Cold Steel: 22-25° per side
- Buck: 22�� per side
20-25° Hunting & Survival Knives
Field knives must handle game processing, wood batoning, shelter building, and fire prep—all while potentially being your only cutting tool. Durability trumps razor sharpness.
Recommended angles by task:
- Field dressing / skinning: 20° (sharper for precision)
- General survival / bushcraft: 22-23° (balanced)
- Heavy-duty / batoning: 25° (maximum durability)
25-30° Woodworking Chisels
Woodworking chisels are single-bevel tools, meaning they're only sharpened on one side (the bevel side). The back remains flat. The 25-30° angle provides strength for paring, mortising, and chopping operations.
Note: Bench chisels typically use 25°, while heavy-duty framing chisels may go up to 30-35° for maximum impact resistance.
How to Maintain Consistent Angles (Beginner Tips)
Knowing the correct angle is one thing. Holding it consistently is another. Here are the best methods for beginners:
1. Use a Guided Sharpening System
Best for BeginnersGuided systems (like Lansky, Work Sharp Precision Adjust, or KME) clamp your knife in place and use angle rods to guarantee consistency. You physically cannot sharpen at the wrong angle.
Recommended systems:
- Lansky Deluxe 5-Stone System — $45, angles from 17-30°
- Work Sharp Precision Adjust — $50, adjustable from 15-30°
- KME Precision Knife Sharpening System — $260, pro-level accuracy
2. Use an Angle Guide (Whetstone Users)
If you prefer freehand sharpening on a whetstone, clip-on angle guides help you maintain the correct angle. These are small plastic wedges that attach to the spine of your knife.
Popular options:
- DMT Angle Guide — $8, simple and effective
- AccuSharp Angle Guide — $12, includes 15° and 20° settings
Tip: Remove the guide after a few sessions once you've developed muscle memory for the angle.
3. The Coin Stack Method (Freehand)
This is a clever trick for estimating angles without tools. Stack coins under the spine of your knife to approximate the angle:
- 15°: Stack 2 U.S. quarters under the spine (for a standard 8" chef's knife)
- 20°: Stack 3 U.S. quarters under the spine
- 25°: Stack 4 U.S. quarters under the spine
Note: This method varies based on blade width, but it's a helpful visual aid for beginners learning to "feel" the angle.
4. The Sharpie Marker Trick
Before sharpening, color the entire edge bevel with a black Sharpie marker. Then take a few passes on your stone or sharpener. Check the edge:
- Sharpie removed from the edge: Your angle is correct ✓
- Sharpie removed from spine-side only: Angle is too high
- Sharpie removed from edge-side only: Angle is too low
This visual feedback is invaluable for learning and troubleshooting.
Common Angle Mistakes (And How to Avoid Them)
Mistake #1: Changing the factory angle unnecessarily
If your knife came from the factory at 20°, keep it at 20°. Changing to 15° means you'll need to remove significant metal to reset the entire bevel, which shortens the knife's lifespan. Only change the angle if you have a specific reason.
Mistake #2: Going too low on hard-use knives
A 15° edge on a pocket knife or hunting knife will chip the first time you cut something hard. Match the angle to the task—durability for field use, sharpness for kitchen precision.
Mistake #3: Inconsistent angles mid-sharpening
Rocking or wobbling the knife during sharpening creates a rounded, "convex" bevel instead of a clean V-shaped edge. This dulls quickly and performs poorly. Stay consistent or use a guide.
Mistake #4: Using the wrong angle for the steel hardness
Hard Japanese steel (60+ HRC) at 25° feels dull and clunky. Soft German steel (56 HRC) at 15° will roll and deform. Match the angle to the steel hardness for optimal performance.
When to Skip DIY and Get Professional Sharpening
Sharpening at the correct angle is a skill that takes practice. If you're unsure, or if your knives are too valuable to risk, professional sharpening is the safer choice.
Consider professional service if:
- You own expensive Japanese knives (Shun, Miyabi, Takamura, etc.)
- Your knife has chips, damage, or needs reprofiling
- You don't have time to learn or practice sharpening
- You want guaranteed results without risk of error
We sharpen kitchen knives, pocket knives, and specialty blades to factory specs or your preferred angle. Mobile pickup and delivery available in Austin, TX.
Frequently Asked Questions
What is the best angle to sharpen a knife?
The best angle depends on the knife type. Kitchen knives: 15-20° per side. Pocket knives: 20-25° per side. Fillet knives: 12-15° per side. German knives work best at 20°, while Japanese knives prefer 15°. A lower angle creates a sharper but more delicate edge, while a higher angle creates a more durable edge.
What does 20 degree knife sharpening mean?
When we say "20 degrees," we mean the angle between the blade face and the sharpening surface on ONE side of the knife. Since you sharpen both sides, the total included angle is 40 degrees (20° per side). This is the standard angle for most Western kitchen knives.
How do I know what angle to sharpen my knife?
Check the manufacturer's specifications, or use these general guidelines: German/Western kitchen knives (Wüsthof, Henckels): 20° per side. Japanese kitchen knives (Shun, Global): 15° per side. Pocket knives: 20-25° per side. Fillet knives: 12-15° per side. Hunting knives: 20-25° per side. If unsure, 20° is a safe middle ground for most knives.
Can I sharpen a knife at the wrong angle?
Yes, and it's one of the most common mistakes. Sharpening at too low an angle makes the edge fragile and prone to chipping. Sharpening at too high an angle makes the blade unnecessarily thick and less sharp. If you change the angle from the factory grind, you'll also need to remove more metal to reset the bevel, which shortens the knife's lifespan.
What angle is a 20 degree knife sharpener?
A "20 degree knife sharpener" sets the blade at a 20° angle relative to the sharpening surface on each side of the blade. Many guided sharpening systems (like the Lansky or Work Sharp) have preset angle guides at 15°, 20°, and 25° to help maintain consistency.
Should I sharpen both sides of a knife at the same angle?
Yes, for double-bevel knives (most Western and Japanese knives), sharpen both sides at the same angle. However, some Japanese single-bevel knives (like traditional yanagiba or deba) are sharpened on only one side at a specific angle. Always check your knife type before sharpening.
Ready for Razor-Sharp Knives at the Perfect Angle?
We sharpen to factory specs or your preferred angle. Mobile pickup and delivery in Austin, TX. 148 reviews, 4.8 stars.