Carbohydrate Exchange Calculator
Convert grams of carbohydrate into 15-gram exchanges (carb choices).
Glycemic Load Calculator
Glycemic load of a food portion from its glycemic index and carbohydrate content.
Your result will appear here
Enter your measurements, then press Calculate.
Methodology
Glycemic load (Foster-Powell et al., 2002)
GL = GI × available carbohydrate (g) ÷ 100
Glycemic load combines how quickly a food raises blood glucose (GI) with how much carbohydrate a portion contains.
- Who it is for
- Any food with a published glycemic index.
- Version
- 1.0.0
Worked example: how to calculate glycemic load
Inputs
- Glycemic index (glucose = 100)
- 55
- Carbohydrate in the portion
- 30 g available carbohydrate
Result
- Glycemic load
- 16.5
Medium (11–19)
Calculation:
55 × 30 / 100 = 16.5
An illustration with sample values, worked out with the same method the tool above uses.
Limitations
- GI values vary with ripeness, cooking and what the food is eaten with.
References
- Foster-Powell K, Holt SH, Brand-Miller JC. International table of glycemic index and glycemic load values: 2002. Am J Clin Nutr. 2002;76(1):5–56. doi:10.1093/ajcn/76.1.5
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