Marinade Ratio Calculator
Calculate the right marinade volume and ingredient ratios for any cut and weight of meat. Use this when prepping a roast, chicken thighs, or a steak overnight so every ounce is evenly coated.
Last updated: September 2026
Formula below · 2 sources (fdc.nal.usda.gov, Wikipedia) · Updated Sep 2026
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About this calculator
A well-balanced marinade relies on three core components: acid (citrus juice, vinegar, yogurt), oil, and aromatics/seasonings. The acid tenderizes the surface while the oil carries fat-soluble flavor compounds. The calculator sizes the total marinade from the meat weight: total (fl oz) = meatWeight (lb) × 16 × styleFactor, where the style factor is 0.2 (citrus), 0.25 (soy), 0.3 (oil-based) or 0.35 (yogurt) fl oz of marinade per ounce of meat — about 3–6 fl oz per pound. The acid and oil percentages split that total rather than add to it: acid = total × acid%, oil = total × oil%, and the rest is soy sauce, aromatics and seasonings. A classic starting point is about 1 part acid to 3 parts oil. Always marinate in the refrigerator, and discard used marinade or boil it before serving it as a sauce (USDA).
How to use
Suppose you have 2 lbs of chicken thighs, a Mediterranean (oil-based) marinade (0.3), 25% acid and 50% oil. Total = 2 × 16 × 0.3 = 9.6 fl oz of marinade. Acid = 9.6 × 0.25 = 2.4 fl oz (about 5 tablespoons of lemon juice), oil = 9.6 × 0.5 = 4.8 fl oz, and the remaining 2.4 fl oz is garlic, herbs, salt and other seasonings. Marinate in a sealed bag in the refrigerator.
Frequently asked questions
How much marinade do I need per pound of meat?
Most culinary guidelines recommend roughly 3–4 fl oz of marinade per pound of meat for a standard wet marinade. Thicker cuts like pork shoulder or beef chuck may need slightly more because the surface area relative to volume is higher. This calculator adjusts that baseline using your chosen marinade style multiplier, so lighter glazes use far less liquid while heavy brines use more. The goal is full surface coverage without excess pooling at the bottom of the bag.
What is the correct acid-to-oil ratio in a marinade?
The classic starting point is a 1:3 acid-to-oil ratio — one part acidic ingredient (lemon juice, vinegar, yogurt) to three parts oil. This ratio ensures the acid does not denature the surface proteins too aggressively before cooking. For very delicate proteins like fish or shrimp, cooks often reduce the acid ratio further to avoid a 'cooked' texture from over-marinating. Use the acid and oil percentages to split the total marinade into its parts; changing them does not change the total volume.
How long should I marinate meat for the best flavor penetration?
Marinade penetration is shallower than most people expect — flavors typically only reach 1–3 mm below the surface regardless of time. For thin cuts like chicken breasts or fish fillets, 30 minutes to 2 hours is sufficient, and longer marinating risks a mushy texture from excessive acid exposure. Thicker cuts like a whole leg of lamb benefit from 8–24 hours simply because more surface contact time improves crust flavor. The calculator helps ensure you mix enough marinade to fully coat the meat during the entire marinating window.