Caster Sugar vs White sugar
A side-by-side guide to substituting White sugar for Caster Sugar (or vice versa).
White sugar works as a 1:1 swap for Caster Sugar in most recipes.
Side-by-side
White sugar
Conversion: 1:1 substitution (use the same amount)
Tags: common
Notes: Caster sugar and white granulated sugar are interchangeable 1:1 by volume. Caster sugar is finer and dissolves slightly faster, but this rarely matters in practice.
Read the full guide: White sugar
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Open calculator →When to use White sugar instead of Caster Sugar
Caster sugar and white granulated sugar are interchangeable 1:1 by volume. Caster sugar is finer and dissolves slightly faster, but this rarely matters in practice. The conversion is 1:1 substitution (use the same amount).
Common questions
Yes — Caster sugar and white granulated sugar are interchangeable 1:1 by volume. Caster sugar is finer and dissolves slightly faster, but this rarely matters in practice. Ratio: 1:1 substitution (use the same amount).
1:1 substitution (use the same amount). For other quantities, use the SubSwap calculator.
They are similar in most uses, but Caster sugar and white granulated sugar are interchangeable 1:1 by volume..
White sugar is one of the options SubSwap lists for Caster Sugar. The 'best' choice depends on your recipe — see the full list of Caster Sugar substitutes.
Looking for more Caster Sugar substitutes beyond White sugar?
See all Caster Sugar swaps →