Calcium in Spinach Calculator – How Much Spinach for Your Daily Calcium?

🥬 Calcium in Spinach Calculator

Calculate exactly how much calcium you get from raw or cooked spinach based on your serving size & unit preference.

Quick Presets
🧮 Enter Your Serving
✨ Your Calcium Results
📊 Spinach Nutrition Per 100g (Raw)
99mg Calcium
2.9g Protein
2.71mg Iron
23 kcal Calories
558mcg Vit. A
28mg Vit. C
790mg Potassium
79mg Magnesium
📋 Calcium by Spinach Type & Serving
Spinach Type Serving Size Weight Calcium (mg) % Daily Value
Raw 1 cup 30g 30 mg 2.3%
Raw 100g 100g 99 mg 7.6%
Raw 1 oz 28.4g 28 mg 2.2%
Cooked (boiled) 1 cup 180g 245 mg 18.8%
Cooked (boiled) 100g 100g 136 mg 10.5%
Cooked (boiled) 1 oz 28.4g 39 mg 3.0%
Frozen (cooked) 1 cup 190g 277 mg 21.3%
Frozen (cooked) 100g 100g 146 mg 11.2%
Canned (drained) 1 cup 214g 272 mg 20.9%
Canned (drained) 100g 100g 127 mg 9.8%
⚠ Note on Calcium Absorption: Spinach contains oxalic acid (oxalates), which binds to calcium and significantly reduces how much your body can actually absorb. The estimated absorption rate from spinach is only about 5% compared to ~32% from dairy milk. The calcium values above represent total calcium content, not bioavailable calcium.
📐 Calcium Daily Requirements by Age & Gender
Age / Group Daily Calcium (mg) Cups Cooked Spinach Needed Cups Raw Spinach Needed
Children 1–3 yrs 700 mg ~2.9 cups ~23 cups
Children 4–8 yrs 1,000 mg ~4.1 cups ~33 cups
Teens 9–18 yrs 1,300 mg ~5.3 cups ~43 cups
Adults 19–50 yrs 1,000 mg ~4.1 cups ~33 cups
Adults 51–70 yrs (M) 1,000 mg ~4.1 cups ~33 cups
Adults 51–70 yrs (F) 1,200 mg ~4.9 cups ~40 cups
Adults 70+ yrs 1,200 mg ~4.9 cups ~40 cups
Pregnant / Lactating 1,000–1,300 mg ~4.1–5.3 cups ~33–43 cups
📏 Spinach Unit Conversion Reference
Measure Grams Ounces Calcium (Raw)
1 cup raw spinach 30g 1.06 oz 30 mg
1 cup cooked spinach 180g 6.35 oz — (cooked: 245mg)
1 oz raw spinach 28.4g 1 oz 28 mg
1 lb raw spinach 454g 16 oz 449 mg
100g raw spinach 100g 3.53 oz 99 mg
1 standard bag (baby) ~142g 5 oz ~141 mg
💡 Did You Know? Cooking spinach dramatically concentrates its calcium content because water evaporates and the volume reduces significantly. One pound of raw spinach cooks down to only about 1–1.5 cups. However, boiling in water can also leach some water-soluble nutrients, so steaming is often preferred for nutrient retention.

Spinach comes from Persia, so from Central and West Asia, and its scientific name comes from Spinacia oleracea. It belongs to the amaranth family, and truly one finds it everywhere in the world currently. One eats the leaf fresh, cooked or preserved, and almost any kitchen imagines itself without it in some way or another.

This vegetable simply enjoys universal love.

All About Spinach

Spinach leaves have various forms. One can get flat or a bit wavy, depending on the kind. Young Spinach has bright and strong leaves, that becomes more dark while they mature, in deeper shade.

Even so here the spot: Spinach naturally has a bit of bitterness, so it needs only little cooking, possibly. Simple steps can remove that bitterness and improve the taste.

Spinach is not hard to find. It sells during the whole year in grocery stores, in many forms; bagged, opened, frozen, preserved, whatever you want. To pick fresh Spinach, avoid anything yellowish or wilted.

To preserve it crisp, lay it between paper towles or wrap it in a sealed box with paper towel on the bottom. Both ways work surprisingly well.

One cup of raw Spinach, or around half a cup cooked, forms a serving. Cook it very little, what commonly shocks folks. Because leafy green vegetables can carry bacteria, one must wash it fully before eating.

For canned Spinach, spill the liquid, rinse it and dry by means of paper towel before.

The nutritional value of Spinach truly impresses. It is rich in protein, potassium and iron, plus folate, Calcium and vitamins B, C and K. The fat is little, and cholesterol even less. It also has niacin, zinc, fiber, magnesium, phosphorus, copper and manganese, everything in one leaf.

Studies show, that Spinach helps the sight, gives energy, strengthens bones, cares about heart health and helps skin to look well. For vegetarians and vegans especially it forms a reliable plant-based source of protein and iron. Even so, too much eating can harm the health.

But there are catches. Spinach carries more oxalates, because of what your teeth occasionally feel rough and dry after eating. Raw Spinach has oxalic acid, that can block the absorbing of Calcium and iron in the body.

And Spinach entered the list of the dirty dozens, that list that ranks products according too high residues of pesticides.

The way you cook Spinach matters more, than one assumes. Sauté it in little fat and avoid boiling every occasion, especially because boiling carries nutrients into the water. Keep the heat low and the time short.

Add juice of fresh lemon above it at the end, and the flavor really lives. Sautéing with olive oil and garlic is probably the simplest way. Moreover, Spinach works in salads, sandwiches, omelets, smoothies, stir-fries, soup, pasta, pizzas, stuffings, lasagnas and quesadillas.

It evenoperates in bread.

Calcium in Spinach Calculator – How Much Spinach for Your Daily Calcium?

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