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Bialetti Moka Express: Interactive Size Selector, Stove Compatibility & Brew Calculator

An interactive guide for selecting the perfect Bialetti Moka Express size based on your household, calculating water-to-coffee ratios, verifying stove compatibility, and troubleshooting your brew.

Updated 8 Sept 2026
An interactive guide for selecting the perfect Bialetti Moka Express size based on your household, calculating water-to-coffee ratios, verifying stove compatibility, and troubleshooting your brew.
MarkSweep · Wikimedia Commons

Find Your Moka Size

Italian moka "cups" are 2oz espresso shots — not 10oz mugs. Let's find the right size for how you actually drink coffee.

How many people are drinking?

How do you drink your coffee?

Recommended Moka Express

3cup

For 1 person drinking mug-sized servings, you need ~120ml (4.1oz). The 3-cup Moka Express produces 130ml.

Remember: Moka pots must be filled completely to their rated capacity to brew correctly.

Stove Compatibility

The classic aluminum Moka Express works on most stoves — with one important exception.

Your stove type

Fully Compatible

The Moka Express performs best on gas — use low to medium flame for even extraction.

Compatible

Brew Calculator

Get the exact water volume and coffee grounds weight for your Moka Express size and roast preference.

Roast Level

Balanced density — the most common choice

Your Brew Recipe

Water (fill to valve)

130 ml

Coffee Grounds

20 g

Fill basket loosely, don't tamp

Dimensions

16cm × 9cm

height × base width

Yield

130 ml

3 Italian shots

Brew tip: Fill water up to the safety valve. Set burner to low-medium. Remove from heat immediately when you hear the gurgling sound.

Troubleshooting Guide

Select any issues you're experiencing to see fixes.

Select an issue above to see specific recommendations.

All Moka Express Sizes

Bialetti Moka Express specifications by size
SizeWaterCoffee (medium)HeightBaseBest for
1-cup60ml7g13.5cm7cmSolo espresso
2-cup90ml11g14.5cm8cmSolo espresso
3-cup130ml20g16cm9cm1-2 people
4-cup185ml26g18cm9.5cm1-2 people
6-cup250ml38g21.5cm11cm2-4 people
9-cup410ml60g25cm11.5cm2-4 people
12-cup595ml80g29.5cm13.5cmGatherings
18-cup800ml108g32cm13.5cmGatherings

Dimensions may vary slightly by production year. Coffee weight assumes a medium-grind, level-filled basket.

Sources

  • Moka Pot sizing is measured in Italian espresso cups (tazza), not typical US coffee mugs.Source ↗
  • Bialetti Moka Express physical specifications and water volumes.Source ↗
  • Moka pots must be filled completely to their rated capacity to brew correctly.Source ↗
  • The classic Aluminum Moka Express compatibility with induction stoves.Source ↗
  • Coffee basket capacity calculations for Moka Express based on density.Source ↗
  • Official Bialetti instructions on fill levels, heat settings, and sound cues.Source ↗