No scales? Describe the amount another way.

Why an estimate needs an amount

A dish name points to a likely food; a portion describes how much of it is on your plate. Any nutrition figure without an amount attached is less useful than it looks — the same curry at 250 grams and at 500 grams are different answers.

That is why the lookup asks for portion detail before offering figures, and why estimates arrive as visibly rough ranges with the assumption stated beside them. If your guess is loose, the honest answer is a wider range — or no figure at all.

The good news is that portion description is a learnable shorthand, not a weighing ritual. The measures below translate any serving into words another person — or a lookup — can picture.

Researchers working on image-assisted dietary assessment hit the same wall: a photo can suggest a food, but amount needs extra evidence, which is why their protocols reach for reference objects and household measures too. Source: PMC review of image-assisted dietary assessment (opens in a new tab).

Hand measures that work anywhere

Your hands are always with you, and they scale roughly with your body — which is why nutrition guidance uses them as practical measures. The British Nutrition Foundation's portion guidance uses them for exactly this purpose: estimates, not measurements. Source: British Nutrition Foundation portion sizes (opens in a new tab).

• An open hand — palm and fingers — roughly covers a cooked meat or protein portion
• A closed fist is a guide for a baked potato or a piece of fruit
• Two cupped hands hold about a cooked pasta or rice serving
• Handfuls suit dry goods like cereal or dry pasta
• Two thumbs together suggest a hard-cheese portion

Hands are guides, not scales

These measures are approximations for adults — a child's smaller hands mean smaller sensible portions, which is why the BNF gives children their own version of the guidance. Source: British Nutrition Foundation portion sizes (opens in a new tab).

If you want to calibrate once: weigh your own hand-measure at home a few times — your cupped hands of cooked rice, your palm of chicken. Five minutes with kitchen scales teaches you how your hands translate into rough grams, and after that they work anywhere.

Use hand measures as a consistent ruler, not as gram equivalents. Their value is that they are repeatable: your fist is the same size next week, which makes "about a fist of pasta" a more stable description than a guessed weight.

For a sanity check on what those measures roughly weigh, the BNF publishes the same shorthand with gram figures alongside: dried pasta about two handfuls (75g), a baked potato about the size of your fist (220g), a chicken breast about the size of your whole hand (120g). Treat the grams as reference points for typical adult hands — yours are the ruler you actually carry. Source: British Nutrition Foundation portion sizes (opens in a new tab).

Cups, spoons and pieces

Household measures are the next most portable vocabulary: a mug of soup, a ladle of stew, three heaped tablespoons of rice, a small glass of juice. Pieces work for anything countable — six dumplings, two slices of bread, a handful of falafel.

Food records handle these the same way. USDA FoodData Central's Foundation Foods records pair nutrient data with household measures and weights where they exist — useful as references for a food, while telling you nothing about the recipe or weight of the serving on your table. Source: USDA Foundation Foods documentation (opens in a new tab).

Worth stating plainly: none of these measures weigh your plate. They translate it into words another person — or a lookup — can picture. "Three ladles of stew" says more than "stew" alone, and "about eight pieces" says more than "some sushi".

Restaurant portions vs pack portions

A packaged product's serving is printed on the pack — and it may be nothing like the serving on your plate or in the restaurant bowl. The nutrition-label guide covers how to read the declared serving; the point here is that restaurant servings usually outsize label portions, and a "small" tub's contents may serve two.

Describing yours relative to something known helps: "about two-thirds of the 400g tub", "a full dinner plate of pasta", "one scoop from the deli case". If the pack is in reach, its per-100g figures plus your portion note is the strongest combination a casual estimate gets.

When you genuinely cannot tell — a shared platter, a tasting menu — describe the fraction instead: "about a third of the sharing bowl" or "two of the eight pieces" gives the estimate a defensible amount to work from.

Two habits sharpen any of these descriptions. If the menu or pack states a weight or count — "200g steak", "six-piece" — use its number rather than guessing your own. And note the portion while the plate is in front of you, or straight after: amount judgements blur fast once the evidence is gone.

Leftovers count too. If you ate half of what was served, write the half you ate — the estimate should describe what you consumed, not what arrived.

What to write in the portion note

Write the amount the way you would describe it to someone who cannot see the plate. Combine a measure with what is actually there — "a large bowl" means more when it is "a large bowl, mostly rice". A few wordings that work:

• a palm-sized piece of grilled chicken
• two fist-sized scoops of rice
• one mug of lentil soup
• six dumplings plus a small side salad
• about half of the packaged 400g portion

Honest guesses beat false precision

"About a fist of pasta" is more honest — and more useful — than a guessed gram figure. Leave out what you do not know rather than inventing it: an unstated amount is better than a confident wrong one, because the lookup treats your note as the portion assumption.

If you genuinely cannot judge the serving, say so in the note or leave it blank and take the wider uncertainty that follows.

One last habit separates good notes from vague ones: describe the dish and the amount as two facts. "Chicken korma" is the what; "about a fist of rice and half the curry" is the how much. The estimate needs both halves to do anything honest with the numbers.

What an estimate still can't know

Even a well-described portion leaves gaps: the recipe, the oil in the pan, the sugar in the sauce, the serving's exact weight. Treat returned figures as rough estimates with their assumptions visible, never as measurements.

For decisions that need real numbers — medical diets, managed conditions, competitive sport — a registered dietitian or the packaged label is the right instrument. The photo-and-portion guide covers what a photo cannot tell you about a serving.