How do I convert cups and ounces to grams and millilitres in my recipes?
A recipe in cups, a scale in grams, and a calculation to redo on every line. Here is how to rewrite a whole recipe in your own units, in one click.
In this article
You found the perfect recipe on an American food blog. It calls for 1 1/2 cups of flour, 3/4 cup of milk, 4 oz of melted butter and 1 lb of ground beef. Your kitchen scale reads in grams, your measuring cups vanished into the back of a drawer years ago, and the other half of your recipes are written in millilitres.
So you open a second tab, type “3/4 cup in ml”, scribble the answer on a scrap of paper, and start over for the seven other lines. Hands covered in flour, while the butter melts.
The problem is not the arithmetic. It is simple, and any search engine does it for you. The problem is doing it line by line, every single time you pull that recipe out, for a dish you are going to cook ten times.
Converting a recipe is not looking up a table
An ordinary converter is a calculator. You give it one value, it hands back the other, and your recipe stays exactly as it was. You are still the one translating, one line at a time, on every use.
Converting a recipe is something else: it is rewriting the recipe itself. The ingredient list is replaced by the same list in your units, once, and it stays that way. The next time you open that recipe, it is already in your system.
Four things separate a real conversion from a calculator:
- measurements you can actually use in a kitchen: “250 ml”, not “236.59 ml”, and “1/2 cup” rather than “0.5 cup”;
- a cook’s rounding: a pound of ground beef becomes 450 g, because that is the size it is sold in;
- quantities with no unit left alone: “2 eggs” and “3 garlic cloves” have nothing to convert, and a naive converter will try anyway;
- the whole list at once, not just the line you remembered to check.
What the other apps do
The market has not ignored the question, but it almost always treats it as a separate tool. ReciMe builds a measurement converter straight into its import flow, for free, which is a good answer for an app designed for the phone first. Paprika brings a decade of refinement and an offline reliability a newer app still has to earn. Plan to Eat swallows a very wide range of import sources, PDF and Word documents included.
Origano takes the problem from the other end, and this is the part worth insisting on:
- The conversion changes the recipe, not a calculator field beside it. You are not looking up an equivalence, you are changing the recipe’s units.
- The direction is worked out for you. Origano looks at the quantities already there and offers the conversion that makes sense: a recipe in cups is offered metric, a recipe in grams is offered cups.
- It is one click, not a form. Nothing to copy out, nothing to type in.
- It works both ways, as often as you like. A converted recipe can be converted back, with the same button.
- Your recipes end up in a single system, the one you use, whatever country the site they came from is in.
A detailed comparison against the six main competitors lives on the alternatives page.
How to convert a recipe in Origano
1. Import the recipe exactly as it is
Do not try to convert along the way. Paste the page address, or photograph the cookbook page: Origano reads the recipe and stores it in its original units, cups and ounces included. The five import methods are covered in the article on importing.
This step matters, because it is what saves you doing by hand what the next one does on its own.
2. Open the recipe and click the scale
On the recipe page, in the row of buttons at the top, there is a small set of scales. That is the conversion button.
3. Confirm the direction
A window opens announcing what it found: “this recipe uses US measurements (cups, tablespoons, oz…)”, and offers metric. You confirm. When a recipe mixes both systems, or uses neither clearly, Origano simply lets you pick the target from a list.
4. Read the list back, then cook
A few seconds later the recipe reopens with its ingredient list rewritten: 1 1/2 cups of flour has become 375 ml, the pound of ground beef has become 450 g, and the 2 eggs are still 2 eggs.
One honest detail: it is the quantities in the ingredient list that get converted. If the text of a step repeats a measurement mid-sentence, or gives the oven temperature in Fahrenheit, that line keeps its original units.
What it changes once it is done
You cook in your own units, with no mental gear change. Tuesday’s American recipe and Thursday’s French one read the same way, with the same tools out of the same drawer.
The scale becomes usable for everything. In baking, that is the difference between flour packed into a cup and 375 ml measured out, which is to say two different results from the same recipe.
Recipes written in another system genuinely become yours. An enormous share of what gets published online is written in cups and pounds. No longer avoiding them, or cooking them approximately, widens what you can make by a lot.
Anyone in the house can take over. A recipe written in the units everybody at home uses is a recipe somebody else can cook without coming to ask you a question.
What if the recipe is not mine?
Conversion is part of the Pro plan, which also adds permanent recipe book sharing. A Pro subscriber can convert the recipes in their own book, and also those in a book someone shared with them: your mother’s recipe, which arrived in cups, reads in millilitres on your side without anyone having retyped it.
Recipes from the official packs are the exception. They belong to the library every account shares, not to yours, and nobody edits them from their own side.
Pro also unlocks AI grocery list cleanup, which removes the salt, oil and flour you already have at home, and automatic filing of new recipes into your categories.
What does it cost?
It is free up to 50 recipes, with no credit card, and the free plan includes every import method, weekly planning and the grocery list. Measurement conversion is part of Pro: the button is visible on your recipes, with a padlock on it.
Pro is $30 USD per year, about $2.50 a month.
No advertising, on either plan.
Where to start
- Create a free account, it takes a minute.
- Import that recipe in the wrong units you have been putting off for six months, from its web address.
- Open it, click the scale, and watch the list rewrite itself.
The rest of your collection can follow along, one recipe at a time, the day you pull each one out. A conversion happens once and holds for every time after that.