Reference

Coffee Grind Size Conversion Chart

Click numbers are grinder-specific and meaningless on their own. Microns travel better. Texture travels best. This chart puts all three in one place so you can move a recipe from one grinder to another without guessing.

The master table

GrindMicronsTextureBrew methods
Extra fine100 to 200Powdered sugar, clumps when pinchedTurkish, pressurised baskets
Fine200 to 300Fine sand, leaves dust on the skinEspresso, Brikka
Medium-fine300 to 400Table saltMoka pot, Aeropress, V60
Medium400 to 600Coarse sand, feels grittyDrip machine, Chemex, Kalita
Medium-coarse600 to 800Sea saltClever dripper, large batch pour-over
Coarse800 to 1100Kosher salt, distinct grainsFrench press, cupping
Extra coarse1100 to 1400PeppercornsCold brew, cowboy coffee

These ranges overlap between grinders and burr types, so treat them as bands rather than exact values. A conical hand grinder at "medium" and a flat commercial burr at "medium" are often 100 microns apart.

Converting clicks to microns

The only reliable way is to know your grinder's microns per click. Common ones:

GrinderPer clickV60 startEspresso start
Comandante C40~30 micron22 to 26 clicks8 to 12 clicks
1Zpresso JX-Pro~12.5 micron55 to 6520 to 30
Baratza Encore~50 micron nominal15 to 18Not capable
Niche Zero~10 micron35 to 4510 to 16
DF64 with SSP burrs~8 micron45 to 5512 to 20

Percentages are safer than absolute clicks. If your current V60 setting is 24 clicks and the cup is sour, go to 22, not to 20. One step at a time beats a dramatic jump every time.

Why the same number tastes different on a new grinder

  • Particle distribution. A grinder does not produce one size, it produces a distribution. Two grinders with the same median can have wildly different fines content, and fines are what clog filters and create bitterness.
  • Burr geometry. Flat burrs produce a narrower distribution with more uniform particles; conical burrs produce more fines and a wider spread. Flat tends to give clarity, conical tends to give body.
  • Zero point calibration. Your zero is the grinder's zero, not the factory's. Calibrate at true chirp before using published click numbers.

The kitchen test, done properly

Texture descriptors only work if you actually compare. Put a pinch of ground coffee next to a pinch of table salt on a white plate. Not in your palm, not against a mental image, but side by side.

  • If your coffee blends in and you cannot tell which is which, you are at medium-fine: pour-over and Aeropress territory.
  • If the coffee feels clearly grittier, you are at medium: drip and Chemex.
  • If you can pick out individual grains, you are at coarse: French press.

Adjusting to the brewer, not the chart

BrewerTarget timeToo fast means
Espresso, 18 g in 36 g out25 to 32 sGrind finer
V60, 250 ml2:30 to 3:00Grind finer
Aeropress, 200 gPress in 20 to 30 sGrind finer
French press, 500 ml4 min steep, 30 s pressGrind finer
Drip, 1 l5 to 7 minGrind finer

Time is the feedback signal. The chart gets you within range; the clock does the rest.

Keep reading

Frequently asked

What micron size is espresso grind?
Roughly 200 to 300 microns, with a median around 250. Finer than table salt, closer to powdered sugar but still gritty between the fingers.
How many clicks is medium grind on a Comandante?
About 22 to 26 clicks from zero for a V60, with 25 as the usual starting point. Comandante clicks are roughly 30 microns each, so multiplying your click number by 30 gives a rough micron estimate.
What is the difference between medium and medium-fine?
About 100 microns, and it is the difference between a V60 that finishes at 2:30 and one that finishes at 3:15. Medium-fine is the finest grind an average paper filter still drains cleanly.
Can I use a coarse grind in an espresso machine?
You can, but the shot will gush in under 10 seconds and taste thin and sour. Espresso needs the bed to provide 9 bar of resistance, and coarse coffee cannot.
Does grind size matter more than dose?
For flavour, yes. A 1 gram change in dose shifts strength; a one-step grind change can shift extraction by several percentage points. Grind is the highest-leverage variable in every brew method.

Straight to the point? Twenty-four coffee questions, answered in one line — every number on this page included.

See the visual chart

Every brew method on one page with a photo of each grind.