Chainsaw Chain Size Guide & Selector

Find the perfect chain for your chainsaw. Compare sizes, check compatibility, and order with confidence.

Find the Matching KMC Saw Chain

Select the pitch and gauge from your guide bar or old chain. The selector will match the products currently available on this site.

Recommended Products

Chain Size Comparison: 3/8" vs .325" vs .404"

Understanding the differences helps you choose the right chain for optimal performance.

3/8" Most Popular

3/8" Pitch Chain

The industry standard for professional chainsaws. Offers the best balance of cutting speed and durability.

  • Bar Length: 16" - 36"
  • Best for: Professional logging
  • Power: 50cc+ chainsaws
  • Gauge: .050" / .063"
Forestry Logging Milling
View 3/8" Chains
.325" Versatile

.325" Pitch Chain

Ideal for mid-range chainsaws. Lower vibration with excellent cutting performance for varied tasks.

  • Bar Length: 12" - 24"
  • Best for: Semi-professional
  • Power: 35-60cc chainsaws
  • Gauge: .050" / .058"
Firewood Farm Use Pruning
View .325" Chains
.404" Heavy Duty

.404" Pitch Chain

Built for the toughest jobs. Maximum cutting power for large-scale commercial logging operations.

  • Bar Length: 24" - 60"
  • Best for: Heavy-duty logging
  • Power: 70cc+ chainsaws
  • Gauge: .063"
Commercial Large Timber Harvesting
View .404" Chains

Quick Comparison

Feature 3/8" Pitch .325" Pitch .404" Pitch
Cutting Speed Fast Balanced Very Fast
Vibration Level Medium Low High
Durability High High Maximum
Ease of Sharpening Standard Easy Professional
Best For Professional Semi-pro / Home Commercial

How to Choose the Right Chain

Choose by Machine

Match your chain to your chainsaw's specifications for optimal performance.

1
Check Your Bar Length

Measure the cutting length of your guide bar (not including the housing).

2
Identify the Pitch

Look at the number stamped on the bar or check your owner's manual.

3
Measure the Gauge

Use a gauge tool or coin to measure the groove width of your guide bar.

4
Count Drive Links

Count the number of drive links on your existing chain for exact replacement.

Choose by Usage

Different tasks require different chain types for best results.

Home & Garden

Firewood, pruning, light cutting

Recommended: 3/8" LP or .325"
Farm & Ranch

Fence posts, clearing, general maintenance

Recommended: .325" or 3/8"
Professional Logging

Felling, bucking, limbing large trees

Recommended: 3/8" Full Chisel
Commercial Harvesting

Large-scale timber, hardwood milling

Recommended: .404" Full Chisel

Still Not Sure Which Chain You Need?

Our experts are ready to help. Send us your chainsaw model and we'll recommend the perfect chain.