This Salad Iron Calculator lets you estimate how much iron is in a bowl of salad by adding up the weight of each ingredient. It is designed for anyone tracking micronutrients — vegans and vegetarians, athletes, dietitians, and home cooks — who wants a quick, practical idea of their iron intake without pulling up a nutrition database.
The calculator uses approximate iron values per 100 g for common salad ingredients, including leafy greens, cooked beans, seeds, tofu, and grains. Because leafy greens and legumes contain non-heme iron, the percentage your body absorbs will depend on the rest of your meal. This tool focuses on the amount of iron present, while the tips section below explains how to get more of it absorbed.
Enter up to four ingredients with their weights, choose how many servings you plan to eat, and press Calculate to see total iron, iron per serving, and the percentage of the Daily Value (18 mg for adults). Quick presets let you start from a realistic salad in one click.
🥗 Salad Iron Calculator
How to Use This Tool
This calculator is built around a simple workflow: pick up to four ingredients, type the weight in grams, and set the number of servings. The tool adds the iron contributed by each ingredient, divides by the number of servings, and then compares that number to the adult Daily Value of 18 mg.
Use the quick preset buttons to load a realistic salad combination, or build your own from the dropdown list. You can leave ingredient slots empty; only the filled rows are counted. If you are weighing a whole recipe that feeds multiple people, enter the total grams used in the bowl and then set the servings to match how the salad is divided.
If you don't have a digital scale, estimate with familiar portions: a loosely packed cup of leafy greens is about 20–30 g, a medium tomato is about 120 g, a half-cup of cooked beans is 85–90 g, and a quarter-cup of seeds is roughly 30 g. The calculator is meant for meal planning, so exact weights are always better, but rough values still give a useful picture.
For single-food iron estimates, see the apricot iron calculator or the watercress iron calculator.
Formula Explained
Each ingredient has an iron density expressed in milligrams per 100 g. The contribution of one ingredient is:
Sum the contributions of all filled ingredient rows to get total iron. Then:
% Daily Value = iron per serving ÷ 18 mg × 100
Percent Daily Value uses the FDA reference of 18 mg for adults. The calculator works equally well for raw vegetables and cooked ingredients, but keep the form consistent: if you enter cooked chickpeas, use the cooked weight, not the dry weight. This “per 100 g” convention is standard in nutrition databases, which is why the tool asks for grams rather than cups.
Because almost all salad ingredients contribute mostly non-heme iron, the result represents iron content rather than absorbed iron. Your body may absorb roughly 2–20% of that non-heme iron depending on the meal and your iron status. The tips below explain how to improve that absorption.
Standard Iron Values
Values below are typical amounts per 100 g and come from the USDA FoodData Central database. Individual varieties, cooking methods, and soil conditions cause small variations.
| Ingredient | Iron (mg per 100 g) |
|---|---|
| Pumpkin seeds | 8.3 |
| Sunflower seeds | 5.4 |
| Swiss chard, cooked | 4.1 |
| Almonds | 3.7 |
| Spinach, cooked | 3.6 |
| Lentils, cooked | 3.3 |
| Chickpeas, cooked | 2.9 |
| Tofu, firm | 2.7 |
| Spinach, raw | 2.7 |
| Edamame, cooked | 2.3 |
| Kidney beans, cooked | 2.2 |
| Kale, raw | 1.5 |
Leafy greens are useful, but seeds and legumes often carry far more iron per gram. A handful of pumpkin seeds can add more iron than a large bowl of lettuce. Aim for variety from at least two iron-rich groups — greens plus legumes, or greens plus seeds — to make a salad that genuinely moves the needle.
Worked Examples
Example 1: Lentil spinach bowl. 80 g raw spinach (2.16 mg), 100 g cooked lentils (3.3 mg), 20 g pumpkin seeds (1.66 mg), and 50 g cherry tomatoes (0.15 mg) give 7.27 mg total. As one serving, that is 7.3 mg iron, or about 40% of the Daily Value.
Example 2: Quinoa chickpea salad. 200 g cooked quinoa (3.0 mg) plus 100 g cooked chickpeas (2.9 mg) and 50 g raw kale (0.75 mg) totals 6.65 mg. Divided into two servings, each has roughly 3.3 mg and covers about 18% of the Daily Value.
Notice how seeds and legumes dominate the total even when they make up a small part of the bowl. If you are building a high-iron salad, use a moderate serving of seeds rather than doubling the spinach — you are more likely to finish it comfortably and absorb the nutrients well.
Tips for Better Iron Absorption
Non-heme iron from salad ingredients is absorbed less efficiently than heme iron from meat. Improve absorption by adding vitamin C–rich ingredients such as red bell pepper, broccoli, lemon vinaigrette, or strawberries to the same meal.
- Cook leafy greens: cooking shrinks their volume, so a normal serving delivers more iron per forkful and is easier to eat in large amounts.
- Avoid drinking tea, coffee, or red wine within an hour of your salad; tannins and polyphenols can inhibit iron absorption.
- If you use canned beans, rinse them well. This removes some added sodium without meaningfully reducing iron.
- Pair iron-rich salads with a small amount of animal protein, fish, or yogurt if you are not strictly plant-based; even a little heme iron or animal protein can enhance non-heme iron uptake.
- Soak and rinse dried legumes before cooking to reduce phytates, natural compounds that bind iron and lower absorption.
- Spread high-iron meals across the day instead of trying to meet your entire requirement in one giant bowl.
Frequently Asked Questions
Why is my result different from a food label? Labels round values, use a different serving size, or are based on a different cooked form. This calculator outputs an approximate total from standard database values, not a precise laboratory measurement.
How much iron do I need? The FDA Daily Value of 18 mg is a general adult reference. Individual recommendations differ: premenopausal women typically need more iron, while adult men and postmenopausal women often need around 8 mg/day. Use your healthcare provider's guidance for personal targets.
Can I meet my iron needs with salad alone? It is possible for some people, but challenging, because non-heme iron is less bioavailable and bulky leafy greens can be hard to eat in the quantities required. Combining greens with legumes, seeds, and vitamin C makes a salad-based iron plan far more realistic. You can also track other minerals by using tools like the watercress iron calculator for individual foods.