WellByNumbers.

French fries vs Potato chips

Both count toward 30 plants a week.

French friesPotato chips
Protein · per 100 g3.4 g6.4 g
Carbs · per 100 g41.4 g53.8 g
Fat · per 100 g14.7 g34.0 g
Fiber · per 100 g3.8 g3.1 g
Energy · per 100 g312 kcal532.0 kcal
Protein · per 100 kcal1.1 g1.2 g
To hit 30 g protein875 g · 2729 kcal469 g · 2498 kcal

The same three numbers, drawn

Protein / 100 g3.46.4Fiber / 100 g3.83.1Protein / 100 kcal1.11.2French friesPotato chips

What 30 g of protein looks like on a plate

875 gFrench fries2729 kcal rides along469 gPotato chips2498 kcal rides alongsquare area drawn to scale · grams needed for 30 g protein

Where the calories come from

4%carbs 53%fat 42%
5%carbs 39%fat 56%

The one-line verdict: Potato chips delivers 1.1× the protein per calorie of French fries (1.2 g vs 1.1 g per 100 kcal).

More protein / 100 g: Potato chipsMore fiber / 100 g: French friesLighter per 100 g: French friesSmaller 30 g portion: Potato chips

Swap in your own pair

Bold marks the better side of each row. "Per 100 kcal" answers the density question — which food delivers more protein for the energy it costs. Portion row is computed live from the same USDA base values shown on each food page.