K-Convenience & Japan

A convenience-store stop in Seoul or Tokyo can be a meal rather than a packet of crisps. Rice rolls, onigiri and crisp rice snacks share shelf space with warm street dishes such as tteokbokki and ramen. The packaging keeps food portable, but fillings, toppings and sauces vary widely between shops.

Humid summer days around 27°C make an air-conditioned store welcome, whether someone is grabbing breakfast before a train or supper after work. Peel back an onigiri wrapper and the nori crackles; a cup of spicy rice cakes is chewy and warming. Check the exact item and portion instead of assuming every roll or bowl is the same size.

Local conditions: Seoul / Tokyo: typically ~27°C, humid in summer. Typical climate, not measured during these food servings. Burn times use the 82kg Hong Kong reference rates, not a separate walk for each item.

Plate of breaded katsu with curry sauce and rice on a wooden table

Katsu Curry

159 MIN WALK

780 kcal

1 Katsu Curry = 3.5x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Bowl of tonkotsu ramen with noodles and toppings on a wooden table

Tonkotsu Ramen

133 MIN WALK

656 kcal

1 Tonkotsu Ramen = 3x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Four pieces of Korean fried chicken on a wooden board

Korean Fried Chicken 4pc

126 MIN WALK

620 kcal

1 Korean Fried Chicken 4pc = 2.8x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Tteokbokki rice cakes in red chilli sauce on a wooden board

Tteokbokki

87 MIN WALK

430 kcal

1 Tteokbokki = 2x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Melon pan sweet bun with crisp patterned crust on a wooden board

Melon Pan

71 MIN WALK

350 kcal

1 Melon Pan = 1.6x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Six takoyaki octopus balls with sauce on a wooden board

Takoyaki 6pc

65 MIN WALK

320 kcal

1 Takoyaki 6pc = 1.5x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Sliced gimbap rice roll with vegetable filling on a wooden board

Gimbap Roll

65 MIN WALK

320 kcal

1 Gimbap Roll = 1.5x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Six pieces of salmon sushi on a wooden board

Sushi Salmon 6pc

59 MIN WALK

290 kcal

1 Sushi Salmon 6pc = 1.3x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Tuna mayo onigiri rice triangle wrapped in nori on a wooden board

Onigiri Tuna Mayo

41 MIN WALK

200 kcal

1 Onigiri Tuna Mayo = 0.91x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Korean crungji crisp rice snack on a wooden board

Korean Crungji

21 MIN WALK

102 kcal

1 Korean Crungji = 0.46x Egg Tart

Tested by Y.W. Fung, 82kg, Apple Watch Ultra · Seoul / Tokyo typical ~27°C

Reviewed by Y.W. Fung, 82kg, Apple Watch Ultra · 2026-05-20