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Ramen Broth Calculator — Bones, Water & Tare by Style

Get precise bone, water, tare, and noodle amounts for any ramen style and serving count

Bones

1.0 kg

Water

2.0L

Simmer

12hr

Broth Base

1.0 kg
bones for Tonkotsu (Pork Bone)

2.0L water, simmer 12 hours

Water

2.0 L

Simmer Time

12 hr

Noodles

480g

Tare Sauce

120 ml

Toppings

Chashu Pork240g
Noodles480g
Scallions40g

Plus 4 eggs and 4 nori sheets

Example Calculations

14 Bowls of Tonkotsu Ramen

Inputs

Number of Bowls4
Broth TypeTonkotsu (Pork Bone)
Noodle TypeThin Straight (Hakata)

Result

Bones1.0 kg
Water2.0 L
Tare Sauce120 ml
Noodles480g
Simmer Time12 hours

4 servings × 0.5kg bones/serving = 1.0kg adjusted (base recipe for 4). Water: 4 × 0.5L = 2.0L. Tare: 4 × 30ml = 120ml. Noodles: 4 × 120g = 480g.

22 Bowls of Miso Ramen

Inputs

Number of Bowls2
Broth TypeMiso
Noodle TypeThick Wavy (Sapporo)

Result

Bones0.5 kg
Water2.0 L
Miso Tare80 ml
Noodles320g
Simmer Time6 hours

2 servings. Miso ratio 1:4. Bones: 2 × 0.25 adjusted = 0.5kg. Water: 2 × 1.0L = 2.0L. Tare: 2 × 40ml = 80ml. Noodles: 2 × 160g = 320g.

Frequently Asked Questions

Q

What is the bone to water ratio for tonkotsu ramen?

Tonkotsu uses approximately a 1:2 bone-to-water ratio by weight, meaning 0.5kg of pork bones per liter of water. The broth requires 12 hours of rolling boil to extract collagen and achieve the signature milky white color. For 4 servings, you need about 1kg of bones and 2L of water.

  • Tonkotsu: 1:2 bone:water ratio (0.5kg bones per 1L water)
  • Shio/Shoyu/Miso: 1:4 ratio (lighter, clearer broths)
  • Chintan (clear chicken): 1:3 ratio, gentle simmer only
  • Always blanch bones first in boiling water for 5 minutes to remove impurities
  • Tonkotsu requires 12 hours of active rolling boil, not a gentle simmer
Broth TypeBone:Water RatioSimmer TimeCharacter
Tonkotsu1:212 hoursRich, milky white
Shio1:46 hoursClear, light
Shoyu1:46 hoursClear, soy-based
Miso1:46 hoursThick, fermented
Chintan1:34 hoursClear chicken
Q

How much tare sauce do I need per bowl of ramen?

Tare (seasoning base) amounts vary by broth type: shoyu tare uses about 35ml per bowl, miso tare 40ml, tonkotsu and chintan 30ml, and shio 25ml. Tare is added to the bowl before ladling in broth, so the broth itself stays unseasoned and versatile.

  • Shio tare: 25ml per bowl — salt-based, lightest flavor
  • Tonkotsu tare: 30ml per bowl — salt + kombu dashi base
  • Shoyu tare: 35ml per bowl — soy sauce + mirin + dashi
  • Miso tare: 40ml per bowl — miso paste + sake + garlic
  • Always add tare to the empty bowl first, then ladle broth over it
Q

How much noodles per serving of ramen?

Standard ramen noodle portions range from 120–160g per serving depending on thickness. Thin Hakata-style noodles use 120g, medium Tokyo-style wavy noodles 140g, and thick Sapporo-style noodles 160g. Fresh noodles weigh more than dried; if using dried, reduce by 30%.

  • Thin straight (Hakata): 120g per serving, pairs with tonkotsu
  • Medium wavy (Tokyo): 140g per serving, pairs with shoyu/shio
  • Thick wavy (Sapporo): 160g per serving, pairs with miso
  • Dried noodles: use 70% of fresh weight (e.g., 84g dried = 120g fresh)
  • Cook noodles separately and add to bowl at the very end
Q

What toppings do I need for ramen?

Standard ramen toppings include 60g chashu pork per bowl, 1 soft-boiled egg (ajitsuke tamago), 10g chopped scallions, and 1 nori sheet. For a full setup, also prepare menma (bamboo shoots), bean sprouts, corn, and butter for miso ramen.

  • Chashu pork belly: 60g per bowl (2–3 slices), braise 2–3 hours ahead
  • Soft-boiled eggs: 1 per bowl, marinate in soy/mirin 4–24 hours
  • Scallions: 10g per bowl, sliced thin
  • Nori: 1 sheet per bowl, served on the side of the bowl
  • Narutomaki (fish cake): 2 slices per bowl, optional

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Last Updated: Mar 21, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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