Convert Spring Onion from Whole Spring onions to Kilograms

Spring Onion converter

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

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 many kg is one medium spring onion?

One medium spring onion is about 0.02 kg. A small spring onion is about 0.01 kg and a large one about 0.03 kg, so set the size selector to match what you have. Use the converter above for any amount, or the chart below for the most common quantities.

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 our Onion converter.

Shallots (20–60 g) are more delicate than spring onions and better suited to dressings and pan sauces. See our Shallot converter.

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

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

Result

0.02 kg

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	Kilograms
1 spring onion	0.02 kg
2 spring onions	0.03 kg
3 spring onions	0.05 kg
4 spring onions	0.06 kg
5 spring onions	0.08 kg
6 spring onions	0.09 kg

Spring Onion conversion chart

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

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

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 kg is one medium spring onion?: One medium spring onion is about 0.02 kg, a small one about 0.01 kg and a large one about 0.03 kg. 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
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.

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