There are about 1.7 cups in a pound of tomato paste — approximately, because the figure depends on how the ingredient is measured. One US cup of tomato paste weighs 262 g spooned and levelled, so 453.59 g (one pound) divided by 262 g gives about 1.73 cups. That is the short answer, and the rest of this guide explains where the number comes from, how much it moves when the measuring method changes, and how to use it in real recipes — from a weeknight dinner to a freezer full of baking.

Tomato paste is the densest ingredient in this slice: a cup weighs about 262 g, more than any other ingredient here, so a pound gives only about 1.7 cups. That density is the point — tomato paste is tomatoes cooked down to a concentrate — and it is why recipes measure it in tablespoons rather than cups. A single tablespoon weighs about 16 g, and most recipes need no more than two or three.

Every figure on this page is labelled approximate, and for good reason: cup measurements vary with packing, moisture and the size of the pieces. When a recipe depends on the amount — a cake, a loaf of bread, a jam that has to set — weigh the ingredient on a kitchen scale instead of trusting the cup. The scale is the only measuring tool that does not care how you filled the cup.

The conversion at a glance

One cup of tomato paste weighs 262 g spooned and levelled. A pound is 453.59 g (16 oz), so the arithmetic is 453.59 ÷ 262 = about 1.73 cups. The table below gives the cup equivalents for the amounts you are most likely to meet, whether you are scaling a recipe up or working out how far a bag or jar will go. All figures are approximate, and all of them use the same 262 g per cup.

Amount Grams Cups (approx.) Tablespoons (approx.)
1/4 lb (4 oz) 113 g 0.4 cups 7 tbsp
1/2 lb (8 oz) 227 g 0.9 cups 14 tbsp
1 lb (16 oz) 454 g 1.7 cups 28 tbsp
2 lb (32 oz) 907 g 3.5 cups 55 tbsp
3 lb (48 oz) 1361 g 5.2 cups 83 tbsp
5 lb (80 oz) 2268 g 8.7 cups 139 tbsp

A single tablespoon of tomato paste weighs about 16.4 g, and a teaspoon about 5.5 g — useful when a recipe calls for a spoonful rather than a cup. And because a kilogram is 1,000 g, the same density gives about 3.8 cups per kilogram: the two conversions are the same arithmetic with the same 262 g per cup, just with a different starting weight.

Worked examples

A rich tomato sauce for pasta

Tomato paste is the secret ingredient in a good pasta sauce, and a sauce for six needs about 3 tablespoons of paste, about 50 g, fried in oil until it darkens before the tomatoes go in. A pound gives about 1.7 cups, or about 27 tablespoons — enough for nine sauces. Fry the paste: raw tomato paste tastes tinny and sharp, but fried in oil for two minutes it turns sweet and deep, and the whole sauce tastes like it cooked for hours.

A chilli con carne for the freezer

Chilli is the batch-cooking use for tomato paste. A double batch for the freezer needs about a quarter cup of paste, about 65 g, stirred in with the spices. A pound covers nearly seven batches. The paste thickens the chilli and adds a savoury depth that chopped tomatoes alone cannot give — but it needs the full cooking time to lose its raw edge, so add it early and let it simmer with the meat.

A tomato soup for eight

Tomato soup is the recipe that uses tomato paste by the cup rather than the tablespoon. A soup for eight needs about half a cup of paste, about 131 g, blended with roasted tomatoes and stock. A pound covers three soups. Roast the tomatoes first: roasted tomatoes plus paste gives a soup with real depth, while paste alone gives a soup that tastes like a tin.

How the figure is measured

The headline figure comes from the CookScale ingredient table, which lists tomato paste at 262 g per US cup (236.6 ml), spooned and levelled, sourced from USDA with medium confidence. Concentrated cooked tomatoes; intensely savoury. The table's uses for tomato paste are: Sauces, stews, marinades and chilli.

The method matters more than most people realise. Spooned and levelled is the standard for this ingredient, and a different method gives a different weight: scooping instead of spooning compresses dry ingredients and can add 10–20% to the weight of a cup, while packing a sticky ingredient can add even more. That is why this guide states the method alongside every figure, and why the headline number is always labelled approximate. If you measure differently from the stated method, expect a different result — and if the recipe matters, weigh the ingredient instead.

One practical consequence: never convert in the wrong direction by accident. To go from cups to grams, multiply the cups by 262. To go from grams to cups, divide the grams by 262. To go from pounds to cups, divide the grams (453.59 per pound) by 262. Keep the 262 g figure in mind and the rest is simple division — but always check the result against a scale when the bake depends on it.

Practical guidance

The mistake is storing an opened tube or tin of tomato paste in the fridge and forgetting it. Tomato paste goes mouldy within days once opened, and a pound of paste is far more than most households use in a week. Freeze the leftover paste in tablespoon-sized dollops on a tray, then bag them: a frozen dollop thaws in seconds in a hot pan, and a pound of paste lasts months instead of days.

Storage: Refrigerate after opening; freeze leftovers in spoonfuls. Weighing the ingredient before you store it, and writing the weight on the container, saves a conversion later: a tub labelled '450 g' tells you instantly that it holds about 1.7 cups, without any measuring at all.

When you do not have a scale: use the cup, but use it carefully. Spoon the ingredient into a dry measuring cup — never scoop from the bag — and level the top with the back of a knife without tapping or shaking the cup. For sticky or wet ingredients, use a liquid measuring jug and read the level at eye height, or lightly oil the cup so the ingredient releases cleanly. Accept that the result will be approximate, and if the recipe is a cake, a loaf or a jam, borrow a scale: it is the single most useful tool in baking, and it costs less than a bag of the flour it measures.

Frequently asked questions

How many tablespoons of tomato paste are in a pound?

About 27 tablespoons. One cup of tomato paste is 16 tablespoons and weighs about 262 g, so a pound (454 g) is about 1.7 cups, or about 27 tablespoons. A standard 6 oz tin holds about 10–11 tablespoons, and a tube holds about 12 tablespoons. Most recipes need 2–3 tablespoons, so a single tin covers three or four meals.

How many cups are in a 6 oz tin of tomato paste?

A 6 oz (170 g) tin holds about 0.65 cups of tomato paste — roughly two-thirds of a cup, or about 10–11 tablespoons. Two tins are about 1.3 cups. Tins are sold by weight, so divide the weight in grams by 262 to get the cups for any size — a pound is about 1.7 cups.

Can I substitute tomato sauce for tomato paste?

Only with adjustments. Tomato paste is concentrated — about 262 g per cup — while tomato sauce is thinner at 245 g per cup, and paste has roughly twice the flavour intensity. To replace 1 tablespoon of paste, use 3 tablespoons of sauce and simmer the dish longer to reduce the extra liquid. The swap works in soups and stews, but not in recipes where paste is used for its thickness.

Should I weigh tomato paste or measure it in cups?

Weigh it whenever the recipe matters. One cup of tomato paste weighs 262 g spooned and levelled, but that figure assumes the stated method — and in practice, cups vary by 10–20% depending on how they are filled. A kitchen scale removes that variation entirely: 262 g is one cup, every time, regardless of who is measuring. Cups are fine for soups, salads and smoothies, where a little more or less makes no difference. For baking, jam, bread and anything where the ratio of ingredients decides the outcome, the scale is the right tool.

How accurate is the about 1.7 cups figure?

It is accurate to about plus or minus a quarter of a cup per pound, which is roughly the variation you get from different measuring methods and different batches of the ingredient. The figure is calculated from a single sourced density — 262 g per cup from USDA, medium confidence — and the arithmetic is exact: 453.59 ÷ 262 = 1.73 cups. The uncertainty is not in the maths but in the cup itself: a scooped cup weighs more than a spooned cup, and a packed cup weighs more than a loose one. Treat 1.7 cups as a planning figure and verify with a scale when it matters.

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