Yeast Starter Calculator

Calculate the optimal yeast starter size for healthy fermentation.

Batch Details

Enter your batch parameters

Batch Size (Gallons)

Original Gravity (OG)

≈ 12.4°P

Yeast Package

Beer Style

Starter Method

Stir PlateIntermittent Shaking

Results

Recommended starter size

Cells Needed

177B

billion cells

Cells Available

100B

from 1 package(s)

Starter Size

0.2 gal

DME Required

55g

≈ 1.9 oz

Tip: Target a starter gravity of 1.036-1.040 SG for optimal yeast growth.

A stir plate provides constant aeration and produces about 3.5x more cell growth than intermittent shaking.