Gelatin/Agar Ratio Calculator

Gelatin comes in two main forms: powder and leaves (sheets). Leaf gelatin is graded by bloom strength — from weakest to strongest: Titanium, Bronze, Silver, Gold, and Platinum. Platinum leaves have the highest bloom strength, meaning you need fewer grams to achieve the same setting power as Silver or Gold. Gelatin powder (typically 225 bloom) is the most common form sold in supermarkets.

No — this is a very common misconception. Agar-agar is significantly more powerful than gelatin as a gelling agent. As a general rule, you need roughly 1/3 to 1/2 the amount of agar-agar compared to gelatin powder by weight. Additionally, agar sets at room temperature and produces a firmer, more brittle gel, while gelatin melts at body temperature for a smoother mouthfeel.

The conversion depends on the leaf grade. A standard Gold leaf weighs about 2 g and is equivalent to roughly 2 g of gelatin powder (200 bloom). A Silver leaf weighs about 2.5 g but has slightly lower bloom strength. The calculator handles these differences automatically — just select your leaf type and it computes the correct powder equivalent.

Too little gelatin and your dessert won't set properly — it will remain liquid or barely hold shape. Too much gelatin produces an unpleasantly rubbery, tough texture. Precision matters, especially for delicate desserts like panna cotta or mirror glazes. Using a calculator like this one helps you get it right every time.

Yes. Unlike gelatin, agar-agar must be fully dissolved by boiling in liquid (at least 85–90°C / 185–194°F). It then sets at room temperature (around 32–40°C / 90–104°F), meaning it holds its shape even in warm environments. This makes agar ideal for warm-climate desserts or plant-based recipes, but it cannot be used as a direct gelatin substitute when a melt-in-the-mouth texture is required.

Bloom strength measures how firm a gel the gelatin can form. Higher bloom = stronger gelling power = less needed per 100ml of liquid. Platinum leaves have the highest bloom (~250), while Titanium leaves have the lowest (~100). When a recipe just says 'gelatin leaves' without specifying the grade, it typically assumes Gold or Silver grade — the most common in home kitchens.

If a recipe says 'X gelatin leaves' without specifying a grade, assume Gold grade as the default — it's the most widely sold variety in Europe and the standard used by most professional pastry chefs. You can then use this calculator to convert from Gold leaves to whatever type you have on hand.

Agar works well as a gelatin substitute in most set desserts, jellies, and aspics. However, it's not ideal for recipes that rely on gelatin's unique melt-at-body-temperature property (like certain mousses or melt-in-the-mouth confections). It also doesn't work well in recipes with high acidity (e.g. fresh pineapple, kiwi, or papaya juice) without adjustments, similar to how fresh tropical fruits break down gelatin too.