Onion vs Scallion
A side-by-side guide to substituting Scallion for Onion (or vice versa).
Use 1.5 cup of Scallion for every 1 cup of Onion.
Side-by-side
Scallion
Conversion: Use 1.5× as much (1.5 cup per 1 cup)
Tags: common
Notes: Scallions are milder and less dense; use 50% more by volume. Best used raw or added near the end of cooking to preserve their fresh flavor.
Read the full guide: Scallion
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Scallions are milder and less dense; use 50% more by volume. Best used raw or added near the end of cooking to preserve their fresh flavor. The conversion is use 1.5× as much (1.5 cup per 1 cup).
Common questions
Yes — Scallions are milder and less dense; use 50% more by volume. Best used raw or added near the end of cooking to preserve their fresh flavor. Ratio: Use 1.5× as much (1.5 cup per 1 cup).
Use 1.5× as much (1.5 cup per 1 cup). For other quantities, use the SubSwap calculator.
They are similar in most uses, but Scallions are milder and less dense; use 50% more by volume..
Scallion is one of the options SubSwap lists for Onion. The 'best' choice depends on your recipe — see the full list of Onion substitutes.
Looking for more Onion substitutes beyond Scallion?
See all Onion swaps →