Grind setting conversion
Eureka Atom 75 vs Mahlkönig EK43
Two grinders cross-shopped at the same money. The Atom 75 turns 0–30 rotations; the EK43 is numbered 0–16.
| Atom 75 | EK43 | |
|---|---|---|
| Brand | Eureka | Mahlkönig |
| Scale | Rotations | Numbered dial |
| Dial range | 0.0 rotations – 30.0 rotations | 0 – 16 |
| Burrs | Flat | Flat |
| Espresso → filter | 7.5 rotations | 7 numbers |
| Filter → coarse | 20 rotations | 7 numbers |
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.
| Atom 75 | EK43 |
|---|---|
| 1.5 rotations | 2 |
| 4.6 rotations | 4.8 |
| 7.1 rotations | 7.1 |
| 7.8 rotations | 7.8 |
| 8.5 rotations | 8.5 |
| 9.6 rotations | 9.3 |
| 12.7 rotations | 10.7 |
| 15.7 rotations | 12.1 |
| 18.8 rotations | 13.4 |
| 21.5 rotations | 14.3 |
| 24.0 rotations | 14.9 |
| 26.5 rotations | 15.4 |
| 29.0 rotations | 16 |
| EK43 | Atom 75 |
|---|---|
| 2 | 1.5 rotations |
| 4.8 | 4.6 rotations |
| 7.1 | 7.1 rotations |
| 7.8 | 7.8 rotations |
| 8.5 | 8.5 rotations |
| 9.3 | 9.6 rotations |
| 10.7 | 12.7 rotations |
| 12.1 | 15.7 rotations |
| 13.4 | 18.8 rotations |
| 14.3 | 21.5 rotations |
| 14.9 | 24.0 rotations |
| 15.4 | 26.5 rotations |
| 16 | 29.0 rotations |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | Atom 75 | EK43 |
|---|---|---|
| Espresso | 3.3 rotations | 3.7 |
| Moka pot | 7.0 rotations | 7 |
| AeroPress (short steep) | 7.8 rotations | 7.8 |
| Pour over — V60 / cone | 8.8 rotations | 8.8 |
| Pour over — flat bottom | 10.8 rotations | 9.8 |
| Drip / batch brew | 12.7 rotations | 10.7 |
| Chemex | 15.6 rotations | 12 |
| French press | 20.6 rotations | 14.1 |
| Cold brew | 25.4 rotations | 15.2 |
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.
Eureka Atom 75
Mahlkönig EK43
Dialing in the Atom 75
A large flat-burr espresso grinder aimed at light commercial and serious home use. Fast, and stepless in the Eureka manner — the settings here are positions to land near rather than detents to count.
Dialing in the EK43
The grinder that changed what filter coffee was supposed to taste like, and still the reference for high-clarity brewing. Its very large flat burrs produce an unusually narrow particle distribution, which is why coffee ground on an EK often tastes cleaner at the same nominal setting than it does elsewhere. Stepless, so treat the numbers as targets.
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 Eureka Atom 75 and the Mahlkönig EK43, 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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