One cup raw spinach is ~30 g (1 oz); one cup cooked spinach is ~180 g.
When a recipe calls for a cup of spinach, the number changes with prep, packing, and heat. This guide gives clear, reliable measures so your greens land right every time.
What Counts As “A Cup” Of Spinach
A US cup is 240 milliliters. With leafy greens, a cup is a volume measure, not a weight. Spinach leaves trap air, stems point in every direction, and rinsing adds moisture. Those quirks swing the grams in a hurry. Cooks use a simple norm: unless a recipe says otherwise, measure a loosely packed cup for raw spinach. For cooked spinach, measure after draining and squeezing off excess liquid.
Quick Reference: Raw Vs. Cooked
One cup raw, loosely packed: about 30 grams. One cup cooked and well drained: about 180 grams. That six-to-one shift comes from water loss and collapsed leaves.
Common Cup Weights For Spinach
The figures below reflect household measuring cups used the same way across home kitchens.
| Spinach Form | 1 Cup Weight | Notes |
|---|---|---|
| Raw Baby Leaves, Loosely Packed | ~30 g | Two light handfuls; don’t press down. |
| Raw Mature Leaves, Torn | ~30 g | Trim thick stems for a truer cup. |
| Raw Chopped Leaves, Loose | ~30–35 g | Knife-chopped, no packing. |
| Raw Leaves, Tightly Packed | ~45 g | Use only if a recipe says “packed.” |
| Sautéed Spinach, Drained | ~150 g | Quick pan wilt, lightly pressed. |
| Boiled Spinach, Drained | ~180 g | Press or squeeze to remove liquid. |
| Frozen Chopped, Cooked & Drained | ~190–200 g | Thaw, cook, then squeeze well. |
Why The Weight Swings
Spinach holds a lot of water. Heat drives moisture off and collapses the air between leaves, so the same cup ends up denser once cooked. Packing pressure matters too: a firm press adds grams fast. Stems add heft; baby stems are light, thick stems bump the number. Rinsed leaves that aren’t dried will read heavy.
How To Measure Raw Spinach The Reliable Way
Five Quick Steps
- Read the wording. If it says “packed,” fill and press lightly until level. If it says nothing, use a loose cup.
- Dry the leaves. Shake off rinse water and spin if you can.
- Match the cut. Tear for salads; chop for sauces and eggs.
- Fill without squeezing. Level the rim with your hand.
- Weigh once, then eyeball. After a few tries, you’ll hit a 30-gram cup by sight.
How To Measure Cooked Spinach
Cook first, then measure. Drain well. For skillet dishes, push the greens to the side and press with a spatula to push out liquid. For boiled greens, give a gentle squeeze. Now fill the cup. A firmly drained cup sits near 180 grams; a quick sauté lands a bit lower.
How Many Cups In A Bag Or Bunch
A 5-ounce clamshell of baby spinach gives about 4 to 5 loose cups raw. An 8-ounce bag gives about 6 to 7 loose cups. A large bunch (8 to 10 ounces) lands near 6 to 8 cups once thick stems are trimmed. Cook that whole amount and you’ll net about 1 to 1½ cups cooked.
How Much Spinach Is In A Cup For Different Prep Styles
This section matches common kitchen jobs to practical amounts you can repeat.
Raw Salads
Plan on 1 loose cup per side salad serving. That’s about 30 grams. Bigger appetites like 1½ cups.
Smoothies
Use 1 to 2 loose cups per smoothie. The weight stays near 30 grams per cup as long as you don’t pack hard.
Egg Dishes
For a 3-egg scramble, 1 loose cup chopped works well. For a 10-inch frittata, start with 3 to 4 loose cups raw.
Pasta And Sauces
If the greens wilt in the pan, start with 3 to 4 loose cups raw to yield about 1 cup cooked.
Side Dishes
For a garlicky sauté for two, start with 10 to 12 loose cups raw; you’ll plate about 1½ to 2 cups cooked.
Casseroles And Dips
Recipes often ask for 1 cup cooked spinach. That’s roughly 180 grams, drained.
Cup-To-Gram Conversions You Can Use
| Volume | Raw Spinach (g) | Cooked Spinach (g) |
|---|---|---|
| ¼ Cup | ~7–8 g | ~45 g |
| ½ Cup | ~15 g | ~90 g |
| 1 Cup | ~30 g | ~180 g |
| 1½ Cups | ~45 g | ~270 g |
| 2 Cups | ~60 g | ~360 g |
How The Numbers Tie Back To Labeling Rules
In US labeling, a single serving of raw leafy greens is often counted by volume, and cooked servings are smaller by volume because of water loss. That’s why one cup raw spinach and half a cup cooked both show up as a serving on many labels and recipes.
Nutrition Snapshot Per Cup
Raw Cup (30 g)
About 7 calories with vitamin K, folate, and vitamin A precursors. Small amounts of iron and magnesium add in as well.
Cooked Cup (180 g)
About 41 calories since more spinach fits into the cup. Heat trims vitamin C but helps with oxalate breakdown, which can improve mineral availability.
Taste And Texture Notes
Raw spinach is tender with a mild, green taste. Baby leaves read sweeter. Mature leaves bring a firmer bite and deeper flavor. Cooking softens fibers and concentrates flavor. A quick sauté keeps color bright and texture silky. Boiled greens end up softer and work well in dips and fillings.
Smart Swaps And Pairings
For salads, add contrast. Citrus, berries, or a briny cheese lift the greens. In hot dishes, garlic and onion add depth. A splash of lemon at the end sharpens the finish. Nuts or seeds bring crunch. Dairy rounds off any bitterness.
How To Buy And Store So Cups Stay Consistent
Pick leaves that look fresh, with crisp stems and no slimy spots. Keep spinach dry and cold in a clamshell or zip bag with a paper towel to catch moisture. Wash right before use. If you wash ahead, spin fully dry so the cup weight doesn’t creep up from clinging water.
Common Measuring Mistakes
- Packing too hard turns a loose cup into a heavy cup.
- Measuring wet leaves adds grams fast.
- Skipping the drain leaves pockets of liquid in cooked cups.
- Ignoring thick stems changes the weight; trim if your recipe expects tender leaves only.
- Swapping raw and cooked one-to-one breaks recipes. Use the tables above.
Yield Math From Pounds To Cups
One pound of raw spinach makes about 10 loose cups. After cooking, that pound ends up near 1½ to 2 cups, depending on the method and how firmly you drain. Steaming leaves a touch more liquid than a firm squeeze after boiling. A sauté lands between those two. Plan on ½ cup cooked per person for a side; one pound serves three to four people.
Recipe Calibration Tips
Salads
For four side salads, set 4 loose cups raw in a big bowl. Add a fifth cup if you want extra volume.
Pasta
For a 12-ounce box, start with 4 loose cups raw. Wilt in the pan until glossy and tender.
Pizza
Chop 2 loose cups raw. Pat away any wet spots before topping so the crust stays crisp.
Omelets
Use ¾ to 1 loose cup chopped per omelet. Pre-wilt for a minute so fillings stay tidy.
Lasagna Or Dips
Measure by weight when you can. If the recipe asks for 1 cup cooked, weigh 180 grams of drained spinach and move on.
When A Recipe Only Lists Cups
Own a scale? Weigh once and jot down the targets: raw cup 30 grams, cooked cup 180 grams. No scale? Use hand cues. A loose cup raw equals two generous handfuls. A cooked cup fills a dry-measure cup with a compact, mound-like shape and no pooling liquid.
Answers To “How Much Spinach Is In A Cup?” That Come Up In Kitchens
Is a packed raw cup wrong? Not if a recipe says “packed.” Otherwise, go loose.
Do baby leaves change the number? Not much for a loose cup. Big shifts show up when you press or when stems are thick.
Does frozen change anything? After cooking and draining, frozen chopped lands near 190 to 200 grams per cup. Thaw, cook, then squeeze.
Why does my cooked cup weigh less than 180 grams? A quick sauté leaves more water in the leaves. Drain and press to reach your target.
Can I swap kale for spinach cup-for-cup? Kale packs a cup with fewer grams. Weigh if precision matters.
Where These Numbers Come From
Nutrition databases list 1 cup raw spinach at about 30 grams and 1 cup boiled, drained spinach at about 180 grams. US serving conventions also count raw leafy greens by the cup and cooked portions by smaller volumes, which explains the common pairing you see on labels.
The Bottom Line
For raw dishes, use 30 grams per cup, loosely packed. For cooked dishes, use 180 grams per cup, drained. With those two anchors, the rest scales cleanly.
Data points align with
1 cup (30 g) raw spinach
and
1 cup cooked spinach (180 g).
If you landed here asking “how much spinach is in a cup?” for a salad or a sauce, the 30 g raw and 180 g cooked targets will keep portions steady across recipes. If a friend asks the same “how much spinach is in a cup?” question, send them this chart and they’ll cook with the same confidence.