Keto sweetener conversion vs 1 cup sugar
Start from labelled sweetness, then correct bulk and moisture. Pure allulose and erythritol are often ~70% as sweet as sugar, so 1⅓ cups replace 1 cup sugar.
| Sweetener | For 1 cup / 200 g sugar | For 1 tbsp sugar | Net carbs | Kitchen note |
|---|---|---|---|---|
| White sugar (reference) | 1 cup | 1 tbsp | 12 g / tbsp | Browns, holds moisture, sets structure |
| Erythritol, pure | 1⅓ cup | 1 tbsp + 1 tsp | ~0 g | Cooling; can recrystallize after cooling |
| Allulose, pure | 1⅓ cup | 1 tbsp + 1 tsp | ~0 g | Browns fast; keeps cookies soft |
| Allulose 1:1 blend | 1 cup (label) | 1 tbsp | ~0 g | Follow the jar; often monk fruit + allulose |
| Monk fruit 1:1 (erythritol blend) | 1 cup (label) | 1 tbsp | ~0 g | Lakanto-style; cooling from erythritol |
| Stevia 1:1 baking blend | 1 cup (label) | 1 tbsp | ~0 g | Bitter if you overshoot; check fillers |
| Swerve granular | 1 cup (label) | 1 tbsp | ~0 g | Marketed 1:1; erythritol + oligosaccharides |
| Lakanto Classic | 1 cup (label) | 1 tbsp | ~0 g | Monk fruit + erythritol; formula varies by country |
| Powdered erythritol / Swerve Confectioners | 1 cup | 1 tbsp | ~0 g | For icing; dissolve fully or it stays gritty |
| Brown-style keto blend | 1 cup (label) | 1 tbsp | ~0–1 g | Molasses flavour is usually flavouring, not sugar |
| Xylitol | 1 cup | 1 tbsp | ~0.6 g / g | Near 1:1 sweet; GI ~13; toxic to dogs |
| Pure stevia / monk extract | ¾–1 tsp extract (no bulk) | ⅛ tsp | 0 g | Replace sweetness only; add fibre or nut flour for bulk |
| Liquid stevia / monk drops | 1–2 tsp drops (product dose) | 2–4 drops | 0 g | For drinks and sauces, not cookie spread |
| Inulin / chicory blends | check label | check label | varies | Adds bulk and GI issues for some people |
Blends labelled 1:1 still differ in browning and cooling. Weigh when possible. Xylitol is toxic to dogs.