Carbs in M&M Fun Size
How many carbs are in m&m fun size?
M&M Fun Size has 68.2g net carbs per 100g — 72g total carbs minus 3.8g fiber — plus 3.8g protein, 18.9g fat, and 492 calories. At this carb count, m&m fun size is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
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M&M Fun Size runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is m&m fun size keto-friendly?
M&M Fun Size is generally not keto-friendly. It has 68.2g net carbs per 100g (72g total carbs − 3.8g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 68.2g | 72g | 3.8g | 492 |
| 1 oz (28 g) | 19.1g | 20.2g | 1.1g | 138 |
How many calories are in m&m fun size?
M&M Fun Size has 492 calories per 100g. That's alongside 3.8g protein, 18.9g fat, and 68.2g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 492 |
| Total carbs | 72g |
| Net carbs | 68.2g |
| Fiber | 3.8g |
| Sugar | 64.4g |
| Sugar alcohols | 0g |
| Protein | 3.8g |
| Fat | 18.9g |
| Sodium | 76mg |
| Potassium | 0mg |
Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in m&m fun size?
- M&M Fun Size has 72g of total carbs and 68.2g of net carbs per 100 grams.
- How many net carbs are in m&m fun size?
- M&M Fun Size has 68.2g of net carbs per 100 grams (total carbs 72g minus 3.8g fiber).
- Is m&m fun size keto-friendly?
- M&M Fun Size is generally not keto-friendly. It has 68.2g net carbs per 100g (72g total carbs − 3.8g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in m&m fun size?
- M&M Fun Size has 492 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.