A typical serving of bok choy (1 cup, shredded, 70 g) has about 9 calories. Per 100 g: 13 kcal, 1.5 g protein, 2.2 g carbs, 0.2 g fat. The same 100 g carries 1 g of fiber and 1.2 g of sugar. In a daily log it contributes close to nothing.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup, shredded | 70 g | 9 kcal |
| 1 head | 840 g | 109 kcal |
| 100 g | 100 g | 13 kcal |
One of the lightest vegetables in any stir-fry at 13 kcal per 100 g. On the energy-density scale, 13 kcal per 100 g puts bok choy at the very low end. Protein density is strong: about 11.5 g of protein per 100 calories.
A typical serving (1 cup, shredded, 70 g) has about 9 calories, and 100 g has 13 kcal. Calories scale with weight, so double the portion means double the number.
There are 1.5 g of protein in 100 g of bok choy, which works out to about 1.1 g per serving (1 cup). Treat it as an energy source rather than a protein source.
There are 2.2 g of carbohydrate per 100 g of bok choy, or about 2 g in 1 cup (70 g).
Every value on this page comes from USDA FoodData Central, entry 170390 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
Snap a photo of your plate in Joules and the calories and macros for bok choy are logged for you.
Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 170390 (SR Legacy). Serving calories are computed from the per-100-g values.
