MeasureCrumb · Free tools for home bakers

Bake by the numbers.

Six free calculators that handle the math your recipes won't — scaling, pan swaps, cups to grams, oven temps, dough hydration, and what to charge for your bakes.

A sourdough loaf resting on a kitchen scale

Recipe Scaler

Resize any recipe to the number of servings you actually need.

Open tool →

Pan Size Converter

Recipe calls for a pan you don't have? Get the exact adjustment.

Open tool →

Baking Unit Converter

Cups, tablespoons, grams, ounces & pounds — ingredient-aware.

Open tool →

Oven Temperature Converter

°F, °C, gas mark, and fan oven adjustments in one place.

Open tool →

Baker's Percentage

Write your dough formula like a pro and nail your hydration.

Open tool →

Baked Goods Pricing

What to charge for your bakes — ingredients, labor and all.

Open tool →

Baking guides

How many grams in a cup of flour?Every flour type, plus why your cup may weigh 150 g Cake pan sizes: the conversion chartSurface areas and the rules for safe substitution How to price cakes and baked goodsA formula that pays you for your time Fan oven conversion chartConvection vs conventional, every common temperature What is baker's percentage?The professional way to write bread recipes, explained How to scale a recipe up or downThe math, the eggs, and what doesn't scale linearly Cottage food laws for home bakersWhat they allow, what they restrict, how to check yours

Why bakers need better math

Baking is chemistry, and chemistry punishes guesswork. A cup of flour can weigh anywhere from 110 to 150 grams depending on how it's scooped — enough to turn a tender cake dense. A recipe written for a 9-inch round pan will overflow an 8-inch one. And a fan oven at the temperature the recipe states will quietly overbake your cookies.

MeasureCrumb exists to remove that guesswork. Every tool here is free, works on your phone in the kitchen, and requires no signup. Bookmark the ones you use and get back to the fun part.