Free baking calculators, no fluff
Every tool here runs instantly in your browser. No signup, no popups, no 30-paragraph life story before the recipe. Just the math bakers actually need.
Bread & sourdough
Sourdough Hydration Calculator
Your true dough hydration including the starter, or the water needed to hit a target.
Baker's Percentage Calculator
Convert a formula to baker's percentages, or percentages into gram weights.
Pizza Dough Calculator
Flour, water, salt, oil and yeast for any number of dough balls.
Yeast Converter
Swap active dry, instant and fresh yeast, in grams and teaspoons.
Dough Temperature Calculator
The exact water temperature to hit your desired dough temperature.
Cakes & decorating
Cake Pan Size Converter
Recipe for a 9-inch round but you have an 8×8 square? Get the exact scaling factor.
Buttercream Calculator
How much frosting to fill and cover your cake, in cups and grams.
Ganache Calculator
Chocolate-to-cream ratios for glaze, frosting or firm truffles.
Conversions & measures
Cups to Grams Converter
Volume to weight for flour, sugar, butter and 15+ baking staples.
Butter Converter
Sticks, cups, tablespoons, grams and ounces of butter.
Oven Temperature Converter
Fahrenheit, Celsius and gas mark — plus the fan oven equivalent.
Cooking Measurement Converter
Teaspoons, tablespoons, cups, fluid ounces, millilitres and more.
Kitchen Weight Converter
Grams, ounces, pounds and kilograms in every direction.
Substitutions & scaling
Recipe Scaler
Paste a whole ingredient list and rescale it — fractions handled for you.
Egg Size Converter
Substitute small, medium, large, XL or jumbo eggs correctly.
Honey & Sugar Converter
Swap sugar, honey and maple syrup with the right liquid and temp fixes.
Simple Syrup Calculator
Sugar and water for 1:1, rich 2:1 or light syrup, in cups and grams.
Baking Soda ⇄ Baking Powder
Out of one leavener? Get the exact swap for the other.
Why these tools exist
Baking is chemistry, and chemistry is ratios. Scaling a recipe by hand, guessing what "1 cup of flour" weighs, or converting a loaf formula between pan sizes is where most home bakes quietly go wrong. Each calculator here does one job, does it accurately, and shows its work so you learn the ratio instead of just the answer.
Everything is free and always will be. If a tool saved your bake, you can leave a small tip — but you never have to.