If your recipe calls for 2 cups of mashed bananas and you would rather weigh than scoop, use 454 g. That figure is approximate and assumes the cup was spooned and levelled, the method King Arthur Baking uses for this ingredient, where one cup weighs 227 g. Very ripe bananas mashed to a pulp. Because mashed bananas turns up in banana bread, pancakes, smoothies and egg replacement. getting this amount right is the difference between a recipe that works first time and one that needs rescuing. Below you will find the conversion table, worked examples for doubling and halving, and the practical details — including what changes if you pack, sift or melt it — that the bare number does not tell you.
How much does mashed bananas weigh? The full table
One cup of mashed bananas is 227 g, and everything in this table is that number scaled up or down. Read it as a straight multiplication: cups × 227 g. The table is approximate by design — no cup measure is exact — so treat the gram figures as targets to weigh towards, and check with a scale when the recipe is fussy.
| Cups | Grams (approx.) |
|---|---|
| 1/4 cup | 57 g |
| 1/3 cup | 76 g |
| 1/2 cup | 114 g |
| 2/3 cup | 151 g |
| 3/4 cup | 170 g |
| 1 cup | 227 g |
| 1 1/4 cups | 284 g |
| 1 1/2 cups | 340 g |
| 1 3/4 cups | 397 g |
| 2 cups | 454 g |
| 2 1/2 cups | 568 g |
| 3 cups | 681 g |
Notice how the table behaves at the small end: a quarter cup is 57 g and a third of a cup is 76 g, and those small rows matter more than they look. Most recipe failures are not caused by getting two cups wrong — that is a big, obvious amount — but by getting the small additions wrong, a quarter cup too much here, a third of a cup too little there. When you weigh, zero the scale with the empty bowl on it, add the ingredient slowly, and stop at the target rather than tipping the bag and hoping.
Three recipes, one number: 454 g
A doubled batch
Take a recipe that uses 1 cup (227 g) of mashed bananas — the kind of recipe you would make for a family pudding or a weekday bake (banana bread, pancakes, smoothies and egg replacement). Doubling it means 2 cups, and the weighing is the easy part: 227 × 2 = 454 g. The part people forget is the tin. A doubled mixture needs roughly double the tin volume, and the baking time usually grows by about a quarter, so start checking five minutes before the original time and then every few minutes after.
A big batch from the start
Now imagine the recipe already asks for 2 cups of mashed bananas. Weigh out 454 g on the scale, taring the bowl first so the bowl's own weight does not count. Add the ingredient gradually and stop at 454 g rather than pouring fast and overshooting — removing a spoonful is easy, but removing exactly the right spoonful after overshooting by 20 g is not. This is the single most useful scale habit there is.
Scaling to three cups
Feeding a crowd? Three cups is 681 g (227 × 3). The arithmetic stays simple, but the practicalities change: a three-cup batch of anything using mashed bananas needs a genuinely large bowl, and if the recipe involves creaming or whisking, a small mixer will struggle. Scale the recipe, then scale the equipment, and check the bake early — large batches brown on the outside before the middle is done.
Method and source: spooned and levelled
The 227 g per cup figure comes from King Arthur Baking, measured spooned and levelled. Confidence is high, which reflects how consistent the figure is across sources rather than how precisely your kitchen will reproduce it — no kitchen reproduces a cup exactly, which is why the figures are approximate. To match the method: spoon the ingredient into a dry cup measure and level it, unless the ingredient is a liquid (pour it) or the method says packed (press it in firmly). There is no famous dispute about the weight of mashed bananas: the figure used here is stable across the sources we checked, which is one reason this conversion is reliable. Even so, every figure on this page is labelled approximate, because how full the cup is, how settled the ingredient is, and the temperature in your kitchen all move the number a little. When precision matters, verify with a kitchen scale.
Common mistakes (and how to avoid them)
The first mistake is scooping with the cup instead of spooning into it. The second is levelling with a finger instead of a straight edge — fingers press the ingredient down and add weight. The third is measuring a dry ingredient in a liquid jug, where the meniscus and the spout make levelling guesswork. The fourth is forgetting to tare the scale, so the bowl's weight joins the ingredient's. Avoid those four and your 454 g will be genuine. Storage: Use fresh; freeze overripe bananas for baking.
Scaling from two cups to any batch size
The two-cup figure is a starting point, not a fixed quantity. Halve the recipe and you need 1 cup (227 g); quarter it and you need 1/2 cup (114 g); make one and a half times the recipe and you need 3 cups (681 g); triple it and you need 6 cups (1,362 g). Every one of those is the same multiplication — cups × 227 g — and the scale does the work for you. What the scale cannot do is scale the equipment, and that is where large batches actually fail. A triple batch of anything using mashed bananas needs a bowl big enough to mix in without spilling, a tin (or several tins) with about three times the volume, and an oven that can hold the larger mass without the temperature dropping. Baking time grows too, but not in proportion: expect roughly a quarter longer, and test with a skewer rather than trusting the clock. Small batches have the opposite problem — a quarter batch bakes faster than you expect, so start checking early. Whatever the size, scale every ingredient by the same factor, including salt and raising agents, and weigh each one: a scaled recipe is only as accurate as its least accurately scaled ingredient.
Frequently asked questions
How many grams is 2 cups of mashed bananas?
2 cups of mashed bananas weighs approximately 454 g. One cup is 227 g (spooned and levelled, King Arthur Baking), so the calculation is 227 × 2 = 454 g. The figure is approximate: how you fill the cup moves the weight, so verify with a kitchen scale when precision matters.
How many tablespoons are in 2 cups of mashed bananas?
There are 32 tablespoons in 2 cups, and one tablespoon of mashed bananas weighs about 14.2 g (227 g per cup ÷ 16). Spoonfuls are useful for small adjustments, but for the full two cups, weighing the 454 g directly is more accurate than counting 32 spoonfuls.
Can I measure 2 cups of mashed bananas without a scale?
Yes — use a dry measuring cup, spoon the mashed bananas in loosely, and level it off with the back of a knife. Do not scoop with the cup itself and do not pack it unless the method says packed. Two careful cups will land close to 454 g, which is good enough for everyday cooking, though a scale is better for baking.
Why do different websites give different weights for mashed bananas?
Because they measure the cup differently. King Arthur Baking lists 227 g per cup spooned and levelled, while other sources may scoop, sift or pack, and each method gives a different weight. The ingredient itself has not changed — only the measuring method has. Match the method and the numbers agree.
Does 2 cups of mashed bananas weigh the same as 2 cups of water?
No. Two cups of water weighs about 474 g, while 2 cups of mashed bananas weighs 454 g. A cup measures volume, not weight, so every ingredient has its own grams per cup — which is why a single universal cups-to-grams number cannot exist and why each ingredient needs its own conversion.
What if my recipe calls for 2 cups but I only have a partial bag?
Weigh what you have. If the bag holds 340 g, that is 1 1/2 cups, and you can scale the whole recipe down by a quarter — multiply every other ingredient by 0.75. Weighing makes that rescue possible; guessing by eye does not.