How many grams is one medium spring onion?

One medium spring onion is about 15 grams, a small one about 10 grams and a large one about 25 grams. Spring onions vary in size, which is the main reason a recipe that counts spring onions can still vary in weight. Set the size selector to match what you have, then read the exact figure for any count above.

What is the average spring onion weight in grams?

The average, or medium, spring onion weighs about 15 grams. A small one is closer to 10 grams and a large one closer to 25 grams, so spring onions vary a fair amount by size. Set the size selector above to match what you have, then read the exact grams figure for any count.

Convert Spring Onion from Whole Spring onions to Grams

Spring Onion converter

Use the tool below to convert spring onion from Whole Spring onions to Grams.

Spring onion size ranges from a slim 10 g stalk to a plump 25 g one (2.5 times the weight). Setting the size below keeps three spring onions consistent whether you have spindly salad onions or fat bunching onions.

How much does a spring onion weigh in grams?

A medium, or average, spring onion weighs about 15 g, with a small one around 10 g and a large one around 25 g. Set the size selector to match what you have, then read the exact gram weight for any number of spring onions above.

Out of spring onion? See spring onion substitutes →

Need a stronger onion flavour? Standard onions (70–150 g) are larger with bold, layered sweetness. See what one medium onion is in grams.

Shallots (20–60 g) are more delicate than spring onions and better suited to dressings and pan sauces. See what one medium shallot is in grams.

Enter an amount, pick your units, and set the size for counting whole spring onions.

Convert from

Convert to

Spring onion sizeSize applies to whole spring onions (small / medium / large).

Result

15 g

Common Spring Onion conversions

Quick reference for spring onion at medium size. Switch the size in the converter above for small or large.

spring onions	Grams
1 spring onion	15 g
2 spring onions	30 g
3 spring onions	45 g
4 spring onions	60 g
5 spring onions	75 g
6 spring onions	90 g

For the reverse conversion, see how many spring onions are in 50 grams.

Spring Onion conversion chart

The chart below shows how whole spring onions (medium size) convert to cups, grams and ounces.

spring onions	g	cups	cups (US)	oz	lb	kg
1 spring onion	15 g	0.15 cups	0.16 cups (US)	0.53 oz	0.03 lb	0.02 kg
2 spring onions	30 g	0.3 cups	0.31 cups (US)	1.06 oz	0.07 lb	0.03 kg
3 spring onions	45 g	0.45 cups	0.47 cups (US)	1.59 oz	0.1 lb	0.05 kg
4 spring onions	60 g	0.6 cups	0.63 cups (US)	2.12 oz	0.13 lb	0.06 kg
5 spring onions	75 g	0.75 cups	0.78 cups (US)	2.65 oz	0.17 lb	0.08 kg

Spring Onion varieties and best uses

The conversions above are the same whatever variety you use; the difference is what each is good for. Here is how the common spring onion varieties compare.

Variety	Best for
Scallion (green onion)	All-purpose use raw or cooked: mild, crisp, and fresh; the standard supermarket spring onion.
Welsh onion (negi)	Stir-fries and cooked dishes: more pungent and heat-tolerant than common scallions.
Bunching onion	Asian dishes and pickling: slightly bulbous base, bold flavour, very versatile.

Which should I pick?

For most recipes (stir-fries, salads, soups, and garnishes) a standard scallion (green onion) is the default: mild, fresh, and edible from root to tip. Welsh onions are more pungent and hold up better to heat; use them when you want stronger flavour in cooked dishes. Bunching onions have a slightly bulbous base and bolder flavour: the everyday choice in many Asian cuisines.

Frequently Asked Questions

How many grams is one medium spring onion?: One medium spring onion is about 15 grams, a small one about 10 grams and a large one about 25 grams. Spring onions vary in size, which is the main reason a recipe that counts spring onions can still vary in weight. Set the size selector to match what you have, then read the exact figure for any count above. Open the spring onion converter
What is the average spring onion weight in grams?: The average, or medium, spring onion weighs about 15 grams. A small one is closer to 10 grams and a large one closer to 25 grams, so spring onions vary a fair amount by size. Set the size selector above to match what you have, then read the exact grams figure for any count.
Which spring onion variety should I use?: For most recipes (stir-fries, salads, soups, and garnishes) a standard scallion (green onion) is the default: mild, fresh, and edible from root to tip. Welsh onions are more pungent and hold up better to heat; use them when you want stronger flavour in cooked dishes. Bunching onions have a slightly bulbous base and bolder flavour: the everyday choice in many Asian cuisines.

Other produce

Convert another fruit or vegetable: