Grind setting conversion
Comandante C40 MK3 vs KINGrinder K6
Two hand grinders cross-shopped at the same money. The C40 MK3 counts 50 clicks; the K6 counts 240 clicks.
| C40 MK3 | K6 | |
|---|---|---|
| Brand | Comandante | KINGrinder |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 50 clicks | 0 clicks – 240 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 18 clicks | 50 clicks |
| Filter → coarse | 14 clicks | 80 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 25 clicks sits at grind index 32.8 on the C40 MK3 but 0 on the K6 — far enough apart to change the cup.
Converting a setting
If a recipe quotes a setting for one of these grinders, read across for the equivalent on the other. Rows are spaced evenly by grind size, not by dial number — on a conical burr those are not the same thing.
| C40 MK3 | K6 |
|---|---|
| 10 clicks | 30 clicks |
| 13 clicks | 45 clicks |
| 17 clicks | 57 clicks |
| 21 clicks | 66 clicks |
| 25 clicks | 73 clicks |
| 29 clicks | 82 clicks |
| 31 clicks | 92 clicks |
| 32 clicks | 103 clicks |
| 33 clicks | 114 clicks |
| 35 clicks | 125 clicks |
| 37 clicks | 136 clicks |
| 40 clicks | 148 clicks |
| 42 clicks | 160 clicks |
| K6 | C40 MK3 |
|---|---|
| 30 clicks | 10 clicks |
| 45 clicks | 13 clicks |
| 57 clicks | 17 clicks |
| 66 clicks | 21 clicks |
| 73 clicks | 25 clicks |
| 82 clicks | 29 clicks |
| 92 clicks | 31 clicks |
| 103 clicks | 32 clicks |
| 114 clicks | 33 clicks |
| 125 clicks | 35 clicks |
| 136 clicks | 37 clicks |
| 148 clicks | 40 clicks |
| 160 clicks | 42 clicks |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | C40 MK3 | K6 |
|---|---|---|
| Espresso | 12 clicks | 39 clicks |
| Moka pot | 16 clicks | 55 clicks |
| AeroPress (short steep) | 21 clicks | 66 clicks |
| Pour over — V60 / cone | 27 clicks | 78 clicks |
| Pour over — flat bottom | 30 clicks | 86 clicks |
| Drip / batch brew | 31 clicks | 92 clicks |
| Chemex | 32 clicks | 102 clicks |
| French press | 35 clicks | 121 clicks |
| Cold brew | 39 clicks | 143 clicks |
The shape of each dial
Where the connectors bunch, that grinder’s dial is compressed and single steps count for more. Comparing the two shapes tells you which gives finer control, and where.
Comandante C40 MK3
KINGrinder K6
Dialing in the C40 MK3
Mechanically close to the MK4 and dialled almost identically — the MK4 changed the axle and bearing rather than the grind geometry. Recipes quoting MK4 clicks transfer to the MK3 essentially unchanged.
Dialing in the K6
KINGrinder's all-rounder, and the value benchmark hand grinders get measured against. External adjustment, 60 clicks a rotation, at 16 microns a click — a coarser step than the 1Zpresso J and X series manage, and the one place you feel the price: espresso is dialable, but in slightly bigger jumps than a stepless grinder gives you. The 48mm stainless heptagonal burrs are what separate it from the rest of the KINGrinder line. If you only ever pull shots, the K4 is the espresso-specific sibling with titanium-coated burrs; the K6 is the one that covers pour over through espresso without being built for either.
Own a different grinder?
Convert between any two of 78 models
The converter runs the same maths for any pair in the catalog.
Open the grind converter →Send me both charts
Every setting for the Comandante C40 MK3 and the KINGrinder K6, side by side in your inbox.
One email with both charts. Nothing else unless you ask.
Switching grinders mid-bag?
Log a brew, say how it tasted, and BrewMark tells you which way to move — in whichever grinder’s numbers you are actually using. Free on iOS.
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