Bento Box Nutrition Calculator

Build your custom bento and see exactly how many calories, protein, carbs, and fat — plus how it compares to fast food.

Protein

Rice Portion

Sides (select 2-3)

Sauce

Your Bento Nutrition

730

Calories

54g

Protein

83g

Carbs

18g

Fat

% of Daily Recommended (2000 cal)37%

Health Score7/10

vs Fast Food

McDonald's Big Mac550 cal / 25g protein

Subway 6" Sub400 cal / 18g protein

KFC 2pc Meal710 cal / 30g protein

Build & Order Your Bento →

Bento Box Nutrition Guide

Why Bento Boxes Are Nutritionally Superior

The bento box format naturally encourages balanced eating: protein takes up 1/3 of the box, rice 1/3, and vegetables 1/3. This ratio delivers an ideal macro split of approximately 30% protein, 40% carbs, and 30% fat — without calorie counting.

Bento vs Fast Food: A Real Comparison

Meal	Calories	Protein	Score
Chicken Teriyaki Bento	530 cal	35g	8/10
McDonald's Big Mac	550 cal	25g	4/10
Subway 6" Turkey	400 cal	18g	6/10
Salmon Bento	600 cal	30g	9/10

Customizing Bentos for Your Goals

For weight loss: skip rice, double the veggies, choose chicken or tofu. For muscle gain: regular rice, choose beef or double chicken, add an egg. For balanced nutrition: follow the traditional 1/3 protein, 1/3 rice, 1/3 vegetables split.

Example: 500-Calorie Chicken Teriyaki Bento

A balanced lunch for a Vancouver office worker targeting 500 calories with high protein:

Grilled chicken thigh with teriyaki glaze (120g): 240 cal, 28g protein
Steamed white rice (120g / small): 156 cal, 3g protein, 34g carbs
Edamame with sea salt (50g): 60 cal, 5g protein, 3g fat
Pickled daikon radish (30g): 10 cal, 0g protein
Sesame spinach (40g): 40 cal, 2g protein, 3g fat
Total: ~506 cal, 38g protein, 40g carbs, 19g fat — health score 8/10

Cost at The Storm Cafe: approximately $14.50 CAD. DIY batch-prep cost: approximately $5.20 per bento. Compared to a Big Mac combo at 900 cal and $12, this bento delivers 13g more protein, 400 fewer calories, and better micronutrients.

Related Tools & Guides

Calorie & Macro Planner →Meal Plan Builder →Lunch Budget Calculator →School Lunch Planner →

Frequently Asked Questions

How many calories are in a typical bento box?

A typical bento box with rice, protein, and sides contains 450-650 calories. This is comparable to or less than most fast food meals (McDonald's Big Mac is 550 calories, Subway 6" sub is 400 calories). Bento boxes typically have better macro balance with more protein and less saturated fat.

Is a bento box healthier than fast food?

Yes, bento boxes are generally healthier. They provide balanced macros (protein, complex carbs, healthy fats), more vegetables, less processed ingredients, and lower sodium. A chicken teriyaki bento scores 7-8/10 on nutrition while a Big Mac scores 4/10.

What is the best protein for a low-calorie bento?

Tofu is the lowest calorie protein option at ~180 calories with 15g protein. Chicken breast is the best calorie-to-protein ratio at 280 calories with 35g protein. For omega-3 benefits, salmon at 350 calories provides 30g protein plus healthy fats.

Can I eat bento boxes for weight loss?

Absolutely. A bento with chicken, small rice, and veggie sides provides around 400-500 calories — well within most weight loss plans. Skip the rice for a low-carb version at 300-400 calories. The key advantage is portion control built into the bento box format.

How much does a bento box cost in Vancouver?

A typical made-to-order bento box in Vancouver costs $12-$18 CAD at restaurants like The Storm Cafe, Kishimoto, or Guu. Meal-prep bentos from delivery services range from $14-$20. DIY bento ingredients (rice + protein + 2 sides) cost approximately $5-$7 per box when prepped at home in batches, making it 50-65% cheaper than buying prepared bentos.