Web app · Food And Drink
Gramwise
Cups to grams, done right — 321 ingredients, each with its own density
A cup of flour is 125 g and a cup of sugar is 200 g, so one factor can never be right. Gramwise carries grams-per-cup for every ingredient, gets packed vs loose sugar, spooned vs scooped flour, egg sizes and butter sticks right, and scales a pasted recipe line by line. Free and offline.
Stored in your browser only. Nothing you do in the web version is sent to our servers. Clear your browser data and it's gone — so export a backup from the in-app menu if you want to keep it.
In your browser
What you can do in Gramwise on the web
321 per-ingredient densities
Flours, sugars, fats, dairy, eggs, liquids, leaveners, grains, nuts, baking aids, chocolate, fruits and spices — grams per US cup from USDA FoodData Central, King Arthur Baking, Joy of Baking, Bob's Red Mill and Cook's Illustrated.
The edge cases other converters flatten
All-purpose flour spooned (125 g) or scooped (156 g), brown sugar packed (220 g) or loose (145 g), powdered sugar sifted (100 g) or not (120 g) — a toggle, with the percentage difference spelled out.
Converts both directions, any unit
Volume to weight and weight back to volume across tsp, tbsp, fl oz, cups, pints, quarts, mL and litres, and grams, kilograms, ounces and pounds — with a common-measures table for the ingredient you picked.
Recipe scaler that reads your paste
Paste a recipe and the parser takes whole numbers, decimals, 1/2-style fractions and unicode ½ ⅓ ¾, recognises the unit and matches the ingredient — then scales every quantified line to your servings and weighs it, keeping unquantified lines verbatim.
Egg sizer
Peewee through jumbo with USDA in-shell, out-of-shell, yolk and white grams, and the equivalent count in any other size — because three jumbos weigh as much as four smalls.
Butter calculator
Sticks, tablespoons, cups, grams and ounces converted four ways off the 113.4 g US stick, with the stick reference table bakers keep taped inside a cupboard door.
Screens
Every screen, rebuilt for the browser
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1
Quick convert
Pick an ingredient, choose a direction, and read the answer big — plus the common-measures table and recent conversions.
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2
Ingredient
Grams per cup, tbsp and tsp, the alternate preparation table and how far apart the two are.
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3
Recipe scaler
Servings in and out, the pasted recipe, and every line scaled with its gram weight.
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4
Ingredients
Search and browse all 321 densities by category, with your pinned staples on top.
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Recipes
Every saved recipe with its scale factor and total weighable grams.
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6
Egg sizer
Convert a count of one egg size to any other, with the full USDA size table.
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7
Butter calculator
Sticks to tablespoons to cups to grams to ounces, plus the stick reference.
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Settings
Default volume unit, rounding, table export, backup, sample data and erase.
Try it with sample data: Adds three worked recipes — brown-butter chocolate chip cookies scaled 24 → 36, a 500 g sourdough sandwich loaf doubled, and a banana bread scaled 8 → 12 — plus four pinned staples and six recent conversions. You can start fresh at any time.
Ready? It's free.
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Questions
Is the web version of Gramwise free?+
Yes. Sign in with a free All Things AI account and use every screen — no subscription, no in-app purchases.
Where is my data stored?+
Only in this browser's local storage. Nothing you enter is sent to our servers, so we can't see it, back it up, or restore it. Clearing site data, a private window, or another device starts empty. Export a backup from the in-app menu to keep it.
Do I need an account?+
You can read about the app without one, but you must sign in to open it. Sign-in is free and takes a few seconds with Google.
How is the web version different from the Gramwise iPhone app?+
The recipe parser is text only — the iPhone app can take a photo of a recipe card, and here you paste or type the lines. Ingredient matching is word-overlap scoring, so an unusual name (“farro flour”) may find no density; the line is still scaled, just not weighed. Densities are published averages. Your flour on a humid day is not a lab sample — the point is to get within a few grams instead of 40.