Pumpkin Purée Table
| Whole weight (pie pumpkin) | Purée (about) | 9-inch pies (2 cups each) | = 15 oz cans (1.75 cups) |
|---|---|---|---|
| 2 lb | 2 cups | 1 | 1.1 |
| 3 lb | 3 cups | 1.5 | 1.7 |
| 4 lb | 4 cups | 2 | 2.3 |
| 5 lb | 5 cups | 2.5 | 2.9 |
| 8 lb | 8 cups | 4 | 4.6 |
| 10 lb | 10 cups | 5 | 5.7 |
The whole-pumpkin-to-pie math comes down to one conversion: a pie pumpkin (sugar pumpkin) yields roughly 1 cup of drained purée per pound of whole weight, and a 9-inch pumpkin pie takes 2 cups. So the pumpkin ladder reads directly: a 2 lb sugar pumpkin is one pie, a 4 lb pumpkin is two, and the 8-10 lb fruit at the farm stand is a four-to-five pie afternoon. The canned reference point: one 15 oz can holds 1 and 3/4 cups - almost exactly a 2 lb pumpkin's worth.
Bottom line: for a two-pie Thanksgiving table, buy two 3 lb sugar pumpkins (about 6 lb total, 6 cups, margin included) or two 15 oz cans - the fresh route costs about the same and takes 60 oven minutes you must plan for; the canned route takes zero. The one swap never to make: the big field pumpkin grown for carving. Twenty pounds of carving pumpkin is not twenty cups of dessert - it is watery, stringy, nearly tasteless flesh that bakes into pumpkin soup at best and pie regret at worst.
The honest limits: yields swing plus-or-minus 20 percent with variety, moisture and how hard you drain the purée - weigh the finished purée, not the pumpkin, when a recipe cares. This page ships without a government citation because the extension-service pages that carry these numbers were unreachable at build time (404/403); the 1 cup per pound rule is recipe consensus, not lab data, and the pie-need figure is the standard 2 cups per 9-inch shell.
How to use
- Pick the variety first: small, dense, orange-all-through sugar or pie pumpkins for eating - the 20 lb field giants are for carving and seeds.
- Halve, scoop, roast face-down at 400F for 45-60 minutes until a fork slides through, then scoop and drain 20-30 minutes - watery purée is the number one pie-filling failure.
- Weigh the purée and use the table: 2 cups per 9-inch pie, 1 and 3/4 cups per 15 oz can if you need to bridge fresh and canned in one recipe.
Frequently asked questions
How many pumpkins do I need for 3 pumpkin pies?
Six cups of purée for three 9-inch pies - call it 6-7 lb of sugar pumpkin, so three 2-3 lb pie pumpkins or one 6-8 lb one, or four 15 oz cans. Buy one size step up from the ladder's arithmetic because yields vary with moisture: a marginal harvest day is fixed by a can, not by stretching the filling.
Is canned pumpkin the same as fresh purée?
Functionally yes, and the can is not a compromise: commercial canned pumpkin is a dense, standardized butternut-and-pie-pumpkin blend - often smoother and less watery than home-roasted, which is why many contest bakers use it on purpose. The swap is 1 and 3/4 cups drained home purée per 15 oz can. The one label trap: 'pumpkin pie filling' is pre-sweetened and pre-spiced - it cannot substitute in a recipe that adds its own sugar and spices.
Can I use a carving pumpkin for pie?
You can, but you should not: field pumpkins are bred for structure and shelf life, not flavor - high water content, stringy texture, and a blandness that survives roasting. If one is already on the counter, roast it for soup or bread where milk, butter and spice carry the dish, dry the purée hard, and still plan on a can for the actual pies. The seeds, though, are world-class - roast those regardless.
How do I fix watery pumpkin purée?
Drain it: line a sieve or coffee filter over a bowl and let it weep 30 minutes to 2 hours in the fridge, or cook the purée low in a wide pan, stirring, until a spoon leaves a clean trail. Watery purée is why the fresh-vs-canned ladder matters - it is also why the purée should be weighed after draining, since a wet cup measures lighter and bakes looser than a drained one.