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Ceviche Calculator — Fish, Citrus, Onion & Chile Ratios

Get precise fish, citrus juice, and chile amounts for authentic ceviche by regional style

Fresh Fish

600g

Citrus

300 ml

Onion

90g

Cure

20 min

White Fish (sea bass, corvina)

600g
fresh, sushi-grade fish
Citrus Juice

300 ml

Red Onion

90g

Chile Pepper

30g

Cure Time

20 min

Fish to Citrus Ratio

Fish600g
Citrus Juice300g
Red Onion90g

Peruvian (leche de tigre): citrus should cover all fish pieces

Example Calculations

14 Servings Peruvian White Fish Ceviche

Inputs

Servings4
FishWhite Fish (sea bass)
StylePeruvian

Result

Fresh Fish600g
Lime Juice300 ml
Red Onion90g
Chile30g
Cure Time20 minutes

4 × 150g = 600g fish. Citrus = 600 × 0.5 = 300ml. Onion = 600 × 0.15 = 90g. Chile = 600 × 0.05 = 30g.

26 Servings Mexican Mixed Seafood

Inputs

Servings6
FishMixed Seafood
StyleMexican

Result

Mixed Seafood900g
Citrus Juice540 ml
Red Onion180g
Cure Time25 minutes

6 × 150g = 900g. Citrus = 900 × 0.6 = 540ml. Onion = 900 × 0.2 = 180g.

Frequently Asked Questions

Q

What is the fish-to-lime ratio for ceviche?

Peruvian ceviche uses a 2:1 fish-to-citrus ratio (150g fish : 75ml lime juice per serving). Mexican style uses more citrus at roughly 5:3 (150g : 90ml). The citrus must completely cover the fish pieces for even curing. Use freshly squeezed lime juice only.

  • Peruvian: 2:1 fish to citrus (150g : 75ml)
  • Mexican: 5:3 ratio with more citrus (150g : 90ml)
  • Ecuadorian: 2.5:1 with added orange juice
  • Citrus must fully cover all fish pieces
  • Only fresh lime juice — bottled has preservatives that affect curing
StyleFish/ServingCitrus/ServingCure Time
Peruvian150g75ml20 min
Mexican150g90ml30 min
Ecuadorian150g60ml25 min
Q

How long should ceviche cure?

Cure time depends on the fish type. White fish (sea bass, corvina) needs 20–25 minutes until the edges turn opaque. Shrimp turns pink in 15 minutes. Scallops need only 10 minutes. Sashimi-grade tuna should be barely cured (5 minutes) for best texture.

  • White fish: 20–25 minutes until edges opaque
  • Shrimp: 15 minutes until pink and curled
  • Mixed seafood: 25 minutes (add delicate fish last)
  • Scallops: 10 minutes, just opaque on edges
  • Tuna: 5 minutes maximum — serve immediately after
Q

What fish is best for ceviche?

The best fish for ceviche is firm, white-fleshed fish: sea bass (corvina), snapper, halibut, or mahi-mahi. The fish must be sushi-grade or previously frozen to -4°F for 7 days to kill parasites. Ask your fishmonger for "sushi-grade" or "previously frozen" fish.

  • Sea bass (corvina): traditional Peruvian choice, firm texture
  • Snapper: widely available, holds up well to curing
  • Halibut: mild flavor, firm texture, premium choice
  • Mahi-mahi: affordable, slightly sweet
  • Must be sushi-grade or previously frozen for food safety
Q

What is leche de tigre?

Leche de tigre ("tiger’s milk") is the leftover citrus marinade liquid from ceviche. In Peru, it is served as a shot alongside the ceviche or as a hangover cure. It contains the concentrated flavors of lime, fish, onion, and chile. Some chefs make extra leche de tigre by blending fish trimmings with citrus.

  • Leftover citrus-fish marinade liquid from ceviche
  • Served as a shot or small glass alongside the dish
  • Famous Peruvian hangover remedy
  • Some chefs blend extra fish trimmings + citrus for more volume
  • Can be used as a base for ceviche instead of plain lime juice

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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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