BenchProof - Baker's Percentage Calculator

Convert bread recipes to baker's percentages instantly. Scale by weight, detect preferments, and save.

BenchProof calculates baker's percentages from bread recipes on 226+ popular recipe sites, then lets you scale to any batch size you need. Baker's percentages are how professional bakers measure recipes: every ingredient as a percentage of total flour. Once you have the percentages, scaling becomes simple math. BenchProof does both automatically. HOW IT WORKS 1. Visit a supported recipe site (King Arthur, Perfect Loaf, etc.) 2. Click the floating BenchProof button that appears 3. See instant baker's percentages, hydration %, and salt % 4. Scale to your target size 5. Print, copy, or save FIVE WAYS TO SCALE - Total dough weight (e.g., "I want 1,500g of dough") - Total flour weight (e.g., "I have 500g of flour") - Number of loaves x loaf size (e.g., "3 loaves at 750g each") - Available starter (e.g., "I have 200g of levain ready") - Specific ingredient (e.g., "Scale so salt = 15g") PREFERMENT DETECTION Automatically identifies levain, poolish, biga, and pâte fermentée. Shows preferment and final dough as separate stages with their own percentages. SCAN ANY SITE Not on our whitelist? No problem. Use "Scan This Page" from the extension menu to try parsing any recipe site that uses JSON-LD Recipe structured data. WORKS ON 226+ popular recipe sites Supported categories include bread specialists, major food media, popular food blogs, baking sites, French pastry blogs, international cuisine, and specialty diet sites. Full list at benchproof.app/chrome-extension Categories covered: - Bread & sourdough specialists - Major food media outlets - Popular food blogs - Baking specialty sites - French pastry blogs - International & regional food sites - Healthy/specialty diet sites (keto, gluten-free, vegan) - Equipment manufacturer recipe pages SAVE YOUR WORK - Print clean, formatted recipes - Copy to clipboard - Save to your free BenchProof account NO TRACKING We don't collect browsing data. Recipe data stays local unless you save to BenchProof.