Tangzhong Recipe Conversion Calculator
Enter the flour and water or milk from a bread recipe to see how much becomes tangzhong, how much remains for the final dough, and whether the recipe has enough liquid.
Tangzhong flour (g)25.0
- Tangzhong liquid (g)
- 125.0
- Tangzhong paste weight (g)
- 150.0
- Flour remaining for final dough (g)
- 475.0
- Liquid remaining for final dough (g)
- 200.0
- Original recipe hydration
- 65%
- Highest feasible tangzhong percentage
- 10%
- Conversion status
- The selected 5.0% tangzhong fits and leaves 200.0 g of entered liquid for the final dough.
Uses a 1:5 tangzhong flour-to-liquid ratio and preserves the flour and liquid totals you entered.
How to use this calculator
- Choose grams or ounces, then enter the total flour from the original recipe.
- Enter the water or milk that can be split between the tangzhong and final dough.
- Choose the share of flour to pre-cook, normally 5% to 10% of total flour.
- Use the remaining flour and liquid amounts when you mix the final dough.
How the tangzhong conversion is calculated
Tangzhong moves a small share of the recipe flour into a cooked paste with water or milk. A common practical formula is one part flour to five parts liquid by weight, with about 5% to 10% of the recipe flour used in the paste. This calculator keeps the original recipe totals intact: flour and liquid used in the paste are subtracted from the final dough.
The formulas are:
Ft = F × p
Lt = 5 × Ft
Pt = Ft + Lt
Fr = F − Ft
Lb = L − Lt
- F is the original total flour.
- L is the water or milk entered for the recipe.
- p is the chosen tangzhong flour percentage divided by 100.
- Ft and Lt are the flour and liquid moved into the tangzhong.
- Lb is the final dough liquid balance. If it is negative, the recipe does not contain enough entered liquid for the selected tangzhong.
What moves the result most
The selected flour percentage has the strongest effect because each extra unit of tangzhong flour also takes five units of liquid. Moving from 5% to 10% doubles the paste and can turn a moderate-hydration bread into a recipe with too little free liquid left for mixing. The calculator also solves the reverse question: Pmax = 100 × L ÷ (5 × F), capped at 10%, so you can see the highest recommended percentage supported by the liquid you entered.
What this calculator leaves out
The calculation does not predict gluten strength, fermentation speed, loaf volume, or crumb softness. It also does not decide whether eggs, yogurt, honey, or other water-containing ingredients should count as liquid. Bakers handle those ingredients differently, so include them only when you intentionally want them treated as part of the tangzhong liquid pool.
Actual paste weight may be slightly lower after cooking because some water evaporates. For mixing the dough, use the flour and liquid balances as the formula adjustment, then cool the paste before adding it to the rest of the ingredients.
Worked example
Suppose a recipe has 500 g flour and 325 g water or milk, and you choose a 5% tangzhong. The tangzhong flour is 500 × 0.05 = 25.0 g. The tangzhong liquid is 25.0 × 5 = 125.0 g, so the paste weighs 150.0 g before cooking loss.
The final dough keeps 475.0 g flour and 200.0 g of the entered liquid. The original hydration is 65%, and the liquid could support more than 10% tangzhong flour, so the highest recommended feasible percentage remains capped at 10%.
Common questions
What is the standard tangzhong flour-to-liquid ratio?
A common tangzhong guideline is one part flour to five parts liquid by weight. That means 25 g of flour is cooked with about 125 g of water or milk. This calculator uses that 1:5 ratio for every conversion.
Should tangzhong flour and liquid be subtracted from the original recipe?
Yes. Tangzhong is usually made from flour and liquid that already belong to the recipe, not extra flour and liquid added on top. Subtracting them keeps the recipe total flour and liquid the same.
Should I use 5%, 7%, or 10% of the flour?
Start near 5% when converting a recipe for the first time, especially if the dough is not very wet. Higher percentages make a larger paste and require more of the recipe liquid. The highest feasible percentage in the results shows whether your entered liquid can support the selected amount.
Can milk replace water in tangzhong?
Yes. Milk is commonly used in tangzhong, especially for enriched breads. Use the same weight method and subtract the milk from the recipe liquid just as you would with water.
Do eggs count as tangzhong liquid?
Usually no for a simple conversion. Eggs contain water, but they also bring protein, fat, and emulsifiers, so many bakers leave them out of the tangzhong liquid calculation. Include them only if you deliberately want to treat part of their weight as recipe liquid.
What if my recipe does not contain enough liquid for a 5% tangzhong?
The calculator will show a liquid deficit and a highest feasible percentage below the usual range. You can use a smaller paste, add liquid to the recipe, or choose another softness method. Adding liquid changes the original formula, so adjust cautiously.