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Grinder conversion

Kingrinder K4 to Hario Skerton Pro

A V60 grind of about 1.06 on a Kingrinder K4 is roughly 3 clicks on a Hario Skerton Pro. Both land near 560 µm, a medium-fine grind.

Kingrinder K41.06V60 setting
Hario Skerton Pro3 clicksV60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew methodKingrinder K4Hario Skerton Pro
Espresso~250 µm0.301 clicks
Moka pot~350 µm0.411 clicks
AeroPress~450 µm0.532 clicks
V60~560 µm1.063 clicks
Chemex~700 µm1.234 clicks
French press~900 µm1.475 clicks
Kalita Wave~600 µm1.113 clicks
Cold brew~1100 µm2.106 clicks
Siphon~650 µm1.173 clicks

Both grinders are mapped to one particle-size scale, fitted from the Honest Coffee Guide's per-method charts. It is not manufacturer burr-gap data, so treat this as a starting point and adjust by taste.

Go the other way

More about these grinders

Questions

Is 1.06 on a Kingrinder K4 the same as 1.06 on a Hario Skerton Pro?

No. The two grinders count in different steps, so the same number gives a different grind. 1.06 on the Kingrinder K4 matches about 3 clicks on the Hario Skerton Pro.

How accurate is this conversion?

It is a starting point. Both grinders are mapped to particle size in microns, fitted from the Honest Coffee Guide charts for each brew method, not from manufacturer burr-gap specs. Beans, roast and burr wear change the result, so adjust by taste.

The coffee tastes sour or bitter after converting. What should I change?

Sour and thin: grind finer by a step or two. Bitter and harsh: grind coarser. Change one thing at a time.

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