5 TOOLS · RUNS IN YOUR BROWSER
Recipe math, done correctly.
Scale ingredients, convert cups to grams by real density, adjust oven temperatures, and count calories per serving. No account needed, and quantity ranges like "3 to 4 cups" convert properly instead of breaking.
What's different here
Ranges convert correctly
"3 to 4 cups flour" scales both ends and stays a clean range — it doesn't need a special operator or break silently.
Density, not a flat multiplier
1 cup of flour and 1 cup of butter don't weigh the same. The converter looks up each ingredient instead of guessing.
A link is the save button
Every conversion can be shared or bookmarked as a URL — no account, nothing stored on a server.
What this recipe converter does
Online Recipe Converter is a free recipe converter built for five specific jobs: scaling a recipe up or down, converting ingredient measurements between volume and weight, converting oven temperature between Fahrenheit, Celsius, and gas mark, calculating calories and macros per serving, and comparing pan sizes at their true physical size on screen. Each tool runs entirely in your browser. Nothing you paste gets sent to a server, and there's no account to create.
Recipe scaler
The recipe scaler multiplies or divides an ingredient list. Enter a multiplier directly — 2 to double a recipe, 0.5 to halve one — or enter your original and desired servings and let the recipe yield calculator convert recipe servings automatically. Paste a full ingredient list and it parses quantities on its own, including fractions like "1 1/2 cups" and ranges like "3 to 4 cups." That range case breaks most recipe scaling tools: they either convert only the first number or refuse the line entirely. Results round to a fraction you can actually measure with — eighths and thirds — not a decimal like 1.583 cups.
Ingredient unit converter
Most cups-to-grams converters use one flat number for every ingredient. That's wrong. A cup of flour weighs about 120 grams. A cup of butter weighs about 227 grams. This ingredient unit converter looks up real density data for each ingredient before converting, so a tablespoon-to-gram or teaspoon-to-gram result reflects what that ingredient actually weighs, not a generic multiplier applied to everything. It covers cups, tablespoons, and teaspoons on the volume side, and grams, kilograms, ounces, and pounds on the weight side — a straightforward recipe measurement converter whether you're turning a US recipe into metric or a metric recipe into cups and spoons.
Oven temperature converter
Enter a temperature in Fahrenheit, Celsius, or gas mark and the other two update. Gas mark conversion uses the standardized UK table rather than a formula, so gas mark 4 reads as 180°C, the way it's actually printed in cookbooks and on oven dials. If your oven is fan-assisted, the converter also shows the adjusted fan/convection setting, using the standard 20°C or 25°F reduction bakers use to convert a conventional-oven recipe.
Recipe calorie counter
The recipe calorie counter works like the unit converter: pick each ingredient from the list rather than typing free text, so the calorie calculator for recipes never guesses at what an ingredient is. Enter the amount you used, in cups, grams, or any supported unit, and it converts that to grams using real density, then scales that ingredient's calories, protein, carbs, fat, fiber, and sugar to match. Add every ingredient in the recipe, set the servings, and the recipe nutrition calculator totals the full recipe and divides it into a per-serving nutritional breakdown. It doubles as a recipe macro calculator for anyone tracking protein or carbs rather than just calories, and as a nutrition calculator for recipes you're about to publish or share.
Built for accuracy, not just convenience
A recipe conversion calculator is only useful if the numbers are right. Every conversion here follows published density and temperature standards, and the scaling logic is tested against the exact cases that trip up other cooking measurement converters — quantity ranges, mixed fractions, and unit crossovers between volume and weight. Every converted recipe can become a shareable link, so you can save a conversion or send it to someone else without creating an account or losing your work when you close the tab.
Pan size guide
A recipe calls for a 9-inch round pan, and two pans in the cupboard both look close. The pan size guide shows common round cake pan sizes at their real physical size on screen, once you calibrate your display, so you can hold the actual pan up and compare directly instead of guessing.
Who it's for
Home cooks scaling a family recipe for a dinner party. Bakers converting a recipe from grams to cups, or the other way around, because a favorite recipe came from a different country's measurement system. Food bloggers who need a reliable recipe resizer to republish a recipe at multiple serving sizes, or a calorie count recipe calculator to add nutritional information recipe cards to a post. Anyone who's ever tried to triple a recipe by hand and lost track of whether 3/4 teaspoon times 3 is 2 1/4 or 2 1/2. Whether you need a simple recipe multiplier to double a recipe for company, a recipe divider to cut a recipe down to two servings, an imperial to metric recipe converter for a recipe from a UK or Australian site, a recipe calculator for how many calories are in a homemade dish, or a kitchen unit converter for a one-off cooking conversion chart lookup, it's built to get the number right the first time — not just close enough.