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Grind setting conversion

Hario Mini Mill Slim+ vs KINGrinder K6

Two hand grinders cross-shopped at the same money. The Mini Mill Slim+ counts 15 clicks; the K6 counts 240 clicks.

Hario Mini Mill Slim+ and KINGrinder K6 specifications compared
Mini Mill Slim+K6
BrandHarioKINGrinder
ScaleClicksClicks
Dial range0 clicks – 15 clicks0 clicks – 240 clicks
BurrsConicalConical
Espresso → filter6 clicks50 clicks
Filter → coarse6 clicks80 clicks

The same number means different things

Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 8 clicks sits at grind index 40 on the Mini Mill Slim+ 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.

Mini Mill Slim+K6
Mini Mill Slim+K6
2 clicks30 clicks
3 clicks45 clicks
4 clicks57 clicks
6 clicks66 clicks
7 clicks73 clicks
8 clicks82 clicks
9 clicks92 clicks
10 clicks103 clicks
11 clicks114 clicks
12 clicks125 clicks
13 clicks148 clicks
14 clicks160 clicks
K6Mini Mill Slim+
K6Mini Mill Slim+
30 clicks2 clicks
45 clicks3 clicks
57 clicks4 clicks
66 clicks6 clicks
73 clicks7 clicks
82 clicks8 clicks
92 clicks9 clicks
103 clicks10 clicks
114 clicks11 clicks
125 clicks12 clicks
136 clicks12 clicks
148 clicks13 clicks
160 clicks14 clicks

Side by side, by brew method

Where each grinder lands for the same brew, worked out from its own dial curve.

Hario Mini Mill Slim+ and KINGrinder K6 settings for every brew method
MethodMini Mill Slim+K6
Espresso3 clicks39 clicks
Moka pot4 clicks55 clicks
AeroPress (short steep)6 clicks66 clicks
Pour over — V60 / cone8 clicks78 clicks
Pour over — flat bottom9 clicks86 clicks
Drip / batch brew9 clicks92 clicks
Chemex10 clicks102 clicks
French press11 clicks121 clicks
Cold brew13 clicks143 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.

Hario Mini Mill Slim+

FINECOARSEGRIND INDEX 0–100015HARIO MINI MILL SLIM+ DIALEspressoV60French pressCold brew
Where the lines bunch, the dial is compressed — small moves count for more

KINGrinder K6

FINECOARSEGRIND INDEX 0–1000240KINGRINDER K6 DIALEspressoV60French pressCold brew
Where the lines bunch, the dial is compressed — small moves count for more

Dialing in the Mini Mill Slim+

Small, cheap and slow, with a stepped adjustment that is coarse in both senses. Best treated as a filter and immersion grinder, where its limited resolution matters least.

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 →
Take it with you

Send me both charts

Every setting for the Hario Mini Mill Slim+ 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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Hario Mini Mill Slim+ vs KINGrinder K6 — Both Dials