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Dough Hydration Calculator

Calculate dough hydration as a baker's percentage from flour and water weights, or find the exact water amount needed for any target hydration level. Whether you are baking Neapolitan pizza at 62%, artisan sourdough at 75%, or ciabatta at 85%, this calculator delivers precise measurements for consistent results.

Dough Hydration Calculator — 실시간 비율 미리보기
Hydration Level
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Proportion Solver
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    Ratio Simplifier
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    Simplified Result
    Reduced to lowest terms
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      Ratio Scaler
      Multiply a ratio by a scale factor
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        What is Dough Hydration?

        Dough hydration is the ratio of total water weight to total flour weight in a recipe, expressed as a baker's percentage. At 65% hydration, the dough contains 65 grams of water for every 100 grams of flour. This single number is the most important variable in bread baking — it determines the dough's handling characteristics, final crumb structure, crust texture, and oven spring behavior.

        In baker's percentages, flour is always defined as 100%, and every other ingredient is expressed relative to it. Hydration is the most critical of these percentages because it controls gluten development, yeast activity, starch gelatinization, and Maillard browning. Low hydration (55-60%) creates dense, easy-to-shape doughs like bagels. Medium hydration (63-70%) suits sandwich loaves. High hydration (72-85%) produces open-crumb artisan breads like ciabatta and focaccia.

        적용 수학 공식 및 방정식

        이 Dough Hydration Calculator는 5가지 핵심 수학 공식을 사용합니다:

        1 Hydration Percentage ▼
        Hydration % = (Water Weight / Flour Weight) × 100

        325g water with 500g flour: Hydration = (325/500) × 100 = 65%.

        2 Water Needed for Target Hydration ▼
        Water = Flour Weight × (Target Hydration % / 100)

        For 70% hydration with 1000g flour: Water = 1000 × 0.70 = 700g.

        3 Flour Needed for Target Hydration ▼
        Flour = Water Weight / (Target Hydration % / 100)

        For 65% hydration with 390g water: Flour = 390 / 0.65 = 600g.

        Explore all calculation options on the 비율 계산기 home page.

        비율 계산기 사용법

        이 비율 계산기는 아래의 3단계로 쉽게 사용할 수 있습니다:

        1

        수치 입력하기

        입력 칸에 알고 있는 비율 값을 입력합니다. 구하려는 미지수 자리의 칸 하나는 비워둡니다.

        2

        모드 선택하기

        비율 모드(풀기, 간소화, 스케일링)를 선택합니다. 각 모드는 입력한 수치에 맞춰 다른 공식들을 적용합니다.

        3

        결과 확인하기

        계산하기 버튼을 누릅니다. 결과 화면에 정답과 함께 시각적인 비율 바, 원형 차트, 상세한 단계별 풀이 과정이 출력됩니다.

        실제 예제 문제 및 단계별 풀이

        비율 계산기를 활용하여 아래 3가지 예제 문제를 단계별로 해결하는 과정입니다:

        입력 1 Calculate hydration: 350g water, 500g flour
        1 Identify water weight (350g) and total flour weight (500g).
        2 Apply Baker's Percentage formula: Hydration = (Water ÷ Flour) × 100%.
        3 Compute: (350 ÷ 500) × 100% = 70%.
        ✓ Dough Hydration is 70.0%
        입력 2 Pizza dough: 1000g flour at 62% hydration
        1 Multiply flour weight by target hydration decimal: 1,000g × 0.62 = 620g water.
        2 Calculate typical salt (2% = 20g) and yeast (0.5% = 5g).
        3 Total batch dough weight = 1,000 + 620 + 20 + 5 = 1,645g.
        ✓ Use 620g water with 1,000g flour
        입력 3 Adjust from 65% to 75% hydration for 500g flour batch
        1 Current water at 65%: 500 × 0.65 = 325g water.
        2 Target water at 75%: 500 × 0.75 = 375g water.
        3 Additional water needed: 375 - 325 = 50g water.
        ✓ Add 50g additional water

        자주 묻는 질문 (FAQ)

        What is the best hydration for bread? ▼

        It depends on the bread type. For beginners, 65-68% is manageable and produces excellent sandwich bread. Artisan loaves shine at 68-75%. Ciabatta and focaccia require 75-85%. Higher hydration gives larger holes and lighter crumb but is harder to shape and handle.

        What is baker's percentage? ▼

        Baker's percentage is a system where each ingredient is expressed as a percentage of the total flour weight. Flour is always 100%. So a recipe with 500g flour, 350g water, and 10g salt has 70% hydration and 2% salt. This makes recipes scalable and universally comparable regardless of batch size.

        Does whole wheat flour need more water? ▼

        Yes. Whole wheat flour absorbs approximately 5-10% more water than white all-purpose flour because bran particles soak up liquid. If your white flour recipe uses 68% hydration, increase to 73-78% when substituting 100% whole wheat flour.

        What hydration is pizza dough? ▼

        Neapolitan pizza: 58-62% for a soft, supple dough that stretches thin. New York style: 62-66% for a foldable, slightly chewy slice. Sicilian/Detroit pan: 70-75% for a light, airy, focaccia-like thick crust. Higher hydration creates lighter texture but is stickier to handle.

        How does hydration affect oven spring? ▼

        Higher hydration generally produces better oven spring because more water converts to steam during baking, expanding the crumb. However, above approximately 80%, the dough may lack the structural strength to rise vertically and instead spreads laterally, especially without proper pre-shaping and surface tension.

        What is autolyse and how does it relate to hydration? ▼

        Autolyse is resting mixed flour and water (without salt or yeast) for 20-60 minutes before the full mix. It allows flour to fully absorb water and begins gluten development passively. Autolyse makes high-hydration doughs significantly easier to handle by improving water absorption before adding strengthening ingredients.

        How do I calculate hydration when using a sourdough starter? ▼

        A 100% hydration starter is 50% flour and 50% water by weight. Add the starter's flour to your total flour and its water to your total water before calculating. For example: 450g flour + 100g starter (50g flour + 50g water) + 330g water = (450+50) flour, (330+50) water = 380/500 = 76% hydration.

        What hydration is sourdough bread? ▼

        Most sourdough bread recipes use 70-78% hydration. The extended fermentation time in sourdough baking makes the dough more extensible, allowing bakers to use higher hydration than yeasted breads. Beginner sourdough bakers should start at 70% and work up to 75%+ as their shaping skills improve.

        Can dough hydration be too high? ▼

        Yes. Above 85-90% hydration, most doughs become extremely difficult to shape, lose structural integrity, and bake flat rather than rising tall. Very high hydration works only for pan-baked breads (focaccia, ciabatta) where the pan provides support during baking.

        How does egg or milk affect dough hydration? ▼

        Eggs are approximately 75% water and 13% fat. Milk is about 87% water. When using these liquid ingredients, count their water content toward total hydration. For example, 50g of whole egg contributes about 37.5g of water to your hydration calculation.

        What is the difference between hydration and moisture content? ▼

        Hydration is the baker's percentage (water ÷ flour × 100), which describes the recipe ratio. Moisture content is the percentage of water in the finished baked product (typically 35-40% for bread). They are related but not the same — baking evaporates a significant portion of the water.

        Why is my high-hydration dough so sticky? ▼

        High-hydration doughs (above 72%) are naturally sticky. This is expected. Use wet hands, a bench scraper, and minimal flour when handling. The stretch-and-fold technique (instead of traditional kneading) builds gluten structure without adding excess flour that would change the hydration.

        비율 이론 학습하기

        비율이란 정확히 무엇인가요?

        비율(Ratio)은 두 가지 이상의 양의 크기를 서로 견주어 비교해 나타낸 수치입니다. 기호로는 A : B 와 같이 나타내며, '앞엣것 A의 단위량당 뒤엣것 B의 분량이 매칭된다'는 상호 관계입니다. 3 : 4 비율이라면 A가 3개 배분될 때 B는 4개 매칭된다는 정비례 관계를 갖습니다. 요리 레시피 배량, 기계 설계, 금융 재무 분석 등에 두루 사용됩니다.

        비례식은 어떻게 푸나요?

        비례식은 두 비율의 가치가 같다는 것을 뜻하는 수학 등식입니다 (A : B = C : D). 외항의 곱(A × D)과 내항의 곱(B × C)은 항상 같습니다. 미지수 D를 구하려면 내항을 곱한 뒤 남은 외항 A로 나눕니다: D = (B × C) / A. 비율 계산기의 비례식 해결 모드에 알고 있는 세 숫자를 넣으면 미지수를 즉각 도출할 수 있습니다.

        비율은 어떻게 간단하게 정리하나요?

        두 숫자의 최대공약수(GCD)를 구한 다음 두 수를 모두 그 최대공약수로 나누어 약분하면 됩니다. 예컨대 24 : 36 의 경우 24와 36의 최대공약수가 12이므로 양쪽을 12로 나누면 가장 간단한 자연수의 비인 2 : 3이 됩니다. 비율 계산기가 GCD 연산과 약분을 자동으로 처리해 줍니다.

        비율 크기 스케일링은 언제 사용하나요?

        비율 관계를 흩뜨리지 않고 전체 양을 늘리거나 줄일 때 사용합니다. 예컨대 2 : 5 비율의 자재가 있을 때 양쪽 모두에 3을 곱하면 6 : 15 가 되어 동일한 비중을 가지면서 3배 많은 배합물을 준비할 수 있습니다. 빵 굽기 반죽 용량 증감, 조립 도면 축소 스케일링 등에서 필수적입니다.

        비율과 분수의 차이점은 무엇인가요?

        비율(A : B)은 대등한 성분끼리 양의 크기를 비교하는 것(부분 대 부분)에 가깝고, 분수(A/B)는 전체 수량의 파이 속에서 특정 부위가 차지하는 지분율(부분 대 전체)을 표현하는 경우가 많습니다. 다만 비율 3 : 4 역시 분수 3/4 (소수 0.75)의 가치로 나타낼 수 있습니다. 쓰임새와 의미 맥락에서 미세한 뉘앙스 차이가 존재합니다.