Baking Calculator
Essential baking calculations including pan size conversion, high altitude adjustments, and baker's percentages for bread making.
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From Pan:
To Pan:
Scale Factor
1.01x
Increase recipe by 1%
Hydration Guide
Low (50-60%)
Stiff doughs for bagels, pretzels, and enriched breads.
Medium (60-70%)
Standard bread doughs. Easy to handle, good structure.
High (70-85%)
Ciabatta, focaccia, and artisan breads. Open crumb.
Baking Calculator
Baker's percentages and baking ratios are the foundation of consistent baking. By expressing all ingredients as a percentage of flour weight, recipes become infinitely scalable and easier to adjust. This calculator helps you work with professional baking formulas.
| Baked Good | Basic Ratio | Flour:Fat:Sugar:Liquid | Key Characteristics |
|---|---|---|---|
| Bread (lean) | 5:3 | 100:0:0:60 | Chewy, crisp crust |
| Bread (enriched) | 8:3:1:1 | 100:12:6:55 | Soft, tender crumb |
| Pound cake | 1:1:1:1 | 100:100:100:100 | Dense, moist, buttery |
| Cookies (standard) | 3:2:1 | 100:66:50 | Crisp edges, chewy center |
| Pie crust | 3:2:1 | 100:66:33 (water) | Flaky, tender |
| Muffins | 2:1:1:2 | 100:50:50:100 | Tender, slightly dense |
| Biscuits | 3:1:2 | 100:33:66 (milk) | Flaky layers |
Understanding Baker's Percentages
Baker's percentage expresses each ingredient as a percentage of total flour weight (flour = 100%):
| Ingredient | Weight (g) | Baker's % | Calculation |
|---|---|---|---|
| Flour (always 100%) | 500g | 100% | Reference ingredient |
| Water | 325g | 65% | 325 ÷ 500 × 100 |
| Salt | 10g | 2% | 10 ÷ 500 × 100 |
| Yeast | 5g | 1% | 5 ÷ 500 × 100 |
| Sugar | 25g | 5% | 25 ÷ 500 × 100 |
| Butter | 50g | 10% | 50 ÷ 500 × 100 |
Baker's Percentage
Where:
- %= Percentage of flour weight
Bread Hydration Levels
Hydration (water as % of flour) dramatically affects bread texture:
| Hydration % | Dough Type | Texture | Examples | Difficulty |
|---|---|---|---|---|
| 50-55% | Stiff | Dense, tight crumb | Bagels, pretzels | Easiest to handle |
| 55-60% | Standard | Uniform, small holes | Sandwich bread, rolls | Easy |
| 60-65% | Moderate | Open crumb, some holes | French bread, dinner rolls | Moderate |
| 65-70% | High | Open, irregular holes | Ciabatta, baguettes | More challenging |
| 70-80% | Very high | Very open, large holes | Focaccia, artisan loaves | Challenging |
| 80-90% | Wet/slack | Extremely open crumb | Ciabatta (traditional) | Expert level |
Leavening Agent Ratios
Proper leavening ratios ensure correct rise and texture:
| Leavener | Amount per Cup Flour | Per 100g Flour | Notes |
|---|---|---|---|
| Baking powder (double-acting) | 1-1.5 tsp | 4-6g (1-1.5%) | Standard for cakes, muffins |
| Baking soda | 1/4 tsp | 1-1.5g (0.25%) | Needs acid (buttermilk, vinegar) |
| Active dry yeast | 1/4 tsp (1 packet/4 cups) | 0.5-1% flour weight | Rehydrate in warm water first |
| Instant yeast | 1/4 tsp (can use less) | 0.3-0.7% flour weight | Mix directly with dry ingredients |
| Sourdough starter | N/A | 15-30% flour weight | Active, fed starter |
Substitution: 1 tsp baking powder = 1/4 tsp baking soda + 1/2 tsp cream of tartar
Sugar and Fat Effects on Texture
Understanding how sugar and fat percentages affect final products:
| Component | Low (%) | Effect | High (%) | Effect |
|---|---|---|---|---|
| Sugar in cakes | <50% | Less tender, pale crust | >100% | Very moist, dense, caramelized |
| Sugar in cookies | <30% | Less spread, cakey | >60% | Crisp, thin, more spread |
| Fat in cakes | <30% | Lighter, drier | >80% | Dense, rich, moist |
| Fat in cookies | <40% | Cakey, less spread | >70% | Flat, crispy, more spread |
| Fat in pie crust | <50% | Tough, less flaky | >70% | Very tender, may be hard to handle |
Egg Functions and Ratios
Eggs serve multiple functions in baking based on which part is used:
| Egg Component | Weight | Primary Function | Typical Ratio |
|---|---|---|---|
| Whole egg (large) | 50g (no shell) | Structure, moisture, richness | 10-20% of flour weight |
| Egg yolk | 17g | Richness, tenderizing, emulsion | 5-15% for enriched doughs |
| Egg white | 33g | Structure, lift, drying effect | For meringues, angel food |
| 1 egg = 3 tbsp | 50g total | Binding, leavening, browning | Typical: 1 egg per cup flour |
Conversions: 1 large egg = 3 tbsp beaten = 2 yolks + 1 white. For half an egg, use 1.5 tbsp beaten egg.
Scaling Recipes with Baker's Percentages
Scale any recipe by setting your desired flour amount:
| Step | Formula | Example (500g flour → 750g) |
|---|---|---|
| 1. Calculate scale factor | New flour ÷ Original flour | 750 ÷ 500 = 1.5 |
| 2. Or use baker's % | New flour × (Ingredient %) | 750 × 0.65 = 488g water |
| 3. Scale salt (2%) | New flour × 0.02 | 750 × 0.02 = 15g |
| 4. Scale yeast (1%) | New flour × 0.01 | 750 × 0.01 = 7.5g |
| 5. Scale sugar (5%) | New flour × 0.05 | 750 × 0.05 = 37.5g |
Key benefit: Baker's percentages allow you to scale to ANY flour amount and maintain perfect proportions.
Worked Examples
Scale Bread Recipe Using Baker's %
Problem:
Original recipe: 500g flour, 325g water, 10g salt, 5g yeast. Scale to make loaves with 750g flour.
Solution Steps:
- 1Calculate current baker's %: Water = 325/500 = 65%, Salt = 10/500 = 2%, Yeast = 5/500 = 1%
- 2Apply to new flour amount (750g):
- 3Water: 750 × 0.65 = 487.5g (round to 488g)
- 4Salt: 750 × 0.02 = 15g
- 5Yeast: 750 × 0.01 = 7.5g (round to 7-8g)
Result:
Scaled recipe: 750g flour, 488g water (65%), 15g salt (2%), 7.5g yeast (1%)
Convert Home Recipe to Baker's Percentage
Problem:
Grandma's bread: 6 cups flour (750g), 2 cups water (480g), 2 tsp salt (12g), 1 packet yeast (7g).
Solution Steps:
- 1Flour = 750g = 100% (reference)
- 2Water: 480 ÷ 750 × 100 = 64%
- 3Salt: 12 ÷ 750 × 100 = 1.6%
- 4Yeast: 7 ÷ 750 × 100 = 0.9%
- 5Now you can scale to any flour amount
Result:
Baker's %: 100% flour, 64% water, 1.6% salt, 0.9% yeast - a standard lean bread formula
Adjust Cookie Recipe Texture
Problem:
Cookies are too cakey. Current ratio: 100% flour, 50% butter, 40% sugar. Want chewier/crispier.
Solution Steps:
- 1Cakey texture = not enough fat and sugar relative to flour
- 2For chewier: increase sugar to 50-60%, keep butter at 50%
- 3For crispier: increase butter to 60-65%, sugar to 55%
- 4Also consider: more brown sugar (hygroscopic), slightly underbaking
Result:
For chewy: 100% flour, 55% butter, 55% sugar. For crispy: 100% flour, 65% butter, 50% sugar.
Tips & Best Practices
- ✓Weigh all ingredients for baking - even a 10% flour variation can ruin results
- ✓For bread, hydration (water %) is the most important ratio after choosing your flour
- ✓Room temperature eggs (65-68°F) and butter incorporate better into batters
- ✓Baker's percentages make scaling recipes infinitely easier - flour is always 100%
- ✓Salt should be 1.8-2.2% of flour weight for bread - it strengthens gluten and controls yeast
- ✓Higher sugar and fat percentages create more tender, spread-out cookies
- ✓For flaky pastry, keep fat cold; for tender cakes, use room-temperature butter
Frequently Asked Questions
Sources & References
Last updated: 2026-01-22