Chainsaw Chain Calculator — Measure Your Chain Specs

Calculate Drive Links

Count the cutters (teeth) on your chain and we'll estimate the total drive links.

Cutter Cutter Cutter ↓ ↓ ↓ ╱‾‾╲ ╱‾‾╲ ╱‾‾╲ ╱ ╲ ╱ ╲ ╱ ╲ ┌──┬──┐──┬──┌──┬──┐──┬──┌──┬──┐──┬── │DL│DL│DL│DL│DL│DL│DL│DL│DL│DL│DL│DL └──┴──┘──┴──└──┴──┘──┴──└──┴──┘──┴── ↑ ↑ Drive Links Drive Links

Each cutter sits between 2 drive links. Count all cutters on one side of the chain.

Number of Cutters

Count only the cutting teeth (sharp bits) on one side of the chain. Don't count tie straps.

cutters

Tip: A standard chain has cutters on alternating sides. Count one side and multiply by 2 to get total cutters. Or just count ALL cutters — we'll work it out.

Did you count one side or both sides?

Calculate Pitch

Measure the distance between any 3 rivets on your chain, then divide by 2.

Measure from the centre of rivet 1 to the centre of rivet 3, then divide by 2.

Distance Between 3 Rivets

Measure in millimetres from the centre of the first rivet to the centre of the third rivet.

Common Pitch Reference

3-Rivet Distance	Pitch	Common Name
12.7 mm	1/4"	Quarter inch
19.05 mm	3/8" LP	Low profile (most homeowner saws)
16.51 mm	.325"	Mid-range saws
19.05 mm	3/8"	Professional saws
20.32 mm	.404"	Large professional / harvester

Identify Gauge

The gauge is the thickness of the drive link — the part that sits in the bar groove. It's hard to measure at home, but here's how to work it out.

Guide Bar (cross section) ┌────────────────────────┐ │ │ │ ┌──────────────────┐ │ │ │ bar groove │ │ │ │ │ │ │ │ ┌────┐ ← drive │ │ │ │ │ │ link │ │ │ │ └────┘ │ │ │ │ ↑ │ │ │ │ gauge = width │ │ │ └──────────────────┘ │ └────────────────────────┘

The gauge is the thickness of the drive link that fits into the groove of the bar.

How to Identify Your Gauge

The easiest methods:

Check your bar — many bars have the gauge stamped on them (look near the tip or base)
Check your old chain packaging — the gauge is printed on the box
Coin test — see which coin fits in the bar groove (below)
Use our Chain Finder — select your saw model and we'll tell you the gauge

Coin Test for Gauge

Try sliding these into your bar groove to identify the gauge:

Gauge	Metric	Test
.043" (1.1mm)	1.1 mm	Thinnest — a 5c coin is too thick
.050" (1.3mm)	1.3 mm	Most common — Australian 5c coin fits snugly
.058" (1.5mm)	1.5 mm	10c coin fits in the groove
.063" (1.6mm)	1.6 mm	20c coin fits in the groove

Still not sure? The easiest way is to use our Chain Finder tool — just pick your saw brand and model and it'll give you the exact gauge.

Select Your Gauge

Based on your measurement or test above:

Your Chain Specs

Shop Chainsaw Chains Use Chain Finder

Know Your Chainsaw Model?

If you know your chainsaw brand and model, the quickest way to find the right chain is our Chainsaw Chain Finder. It has the specs for hundreds of models from Stihl, Husqvarna, Echo, Makita, and more.

If you're not sure about your model, check the sticker or plate on the side of your chainsaw — it usually shows the model number near the rear handle.

How to Measure Chainsaw Chain Specs

Every chainsaw chain has three key measurements that determine what replacement chain you need:

Pitch — the distance between three consecutive rivets, divided by 2. Common pitches are 1/4", .325", 3/8", 3/8" LP (low profile), and .404".
Gauge — the thickness of the drive links (the tabs that sit in the bar groove). Common gauges are .043", .050", .058", and .063".
Drive links — the total number of drive links in the chain loop. This determines the chain length and must match your bar exactly.

All three specs need to match your chainsaw and bar for the chain to fit properly. If any one is wrong, the chain either won't fit on the bar or won't run safely.

Need help? Send us your saw model or a photo and we'll work it out for you.

Quick Links

Tungsten Chainsaw Chains — browse our full range of tungsten carbide chainsaw chains.

Bar & Chain Combos — save with a bar and chain bundle.

Husqvarna Chain Size Guide — complete model-by-model sizing reference.

Guides & Resources

Tungsten Chainsaw Chains — browse our full range of tungsten carbide chainsaw chains.

Bar & Chain Combos — save with a bar and chain bundle.

How to Choose the Right Chainsaw Chain — complete buying guide.

Chainsaw Chain Sizes Explained — pitch, gauge, and drive links breakdown.

Stihl Chain Size Guide — every Stihl model and the chain it needs.

Husqvarna Chain Size Guide — complete model-by-model sizing reference.

Echo Chain Size Guide — all Echo models covered.