Australian Recipe Measurements: Cups, Tablespoons & ml Explained

The Tablespoon Problem Nobody Talks About

You follow the recipe exactly. You measure carefully. But the sauce is too thin, the biscuits are dry, the slice doesn't set. Sound familiar?

If you're cooking from Australian recipes — or cooking Australian recipes overseas — there's a measurement trap that catches almost everyone, including experienced cooks.

Australia uses a 20ml tablespoon. The rest of the world uses 15ml.

That's a 33% difference. And almost no recipe app, conversion tool, or cookbook bothers to tell you.

Why Australia Is Different

When Australia metricated in the 1970s, it standardised the tablespoon at 20ml — four teaspoons of 5ml each. The UK, US, and most other countries settled on 15ml (three 5ml teaspoons).

The result: every time an Australian recipe says "1 tablespoon", it means significantly more than a cook in London, New York, or Tokyo would measure out.

Where It Really Hurts

The difference matters most in baking, where ratios are everything:

• Baking powder and bicarb — 1 tbsp of bicarb in an Australian recipe is 20ml. Use a 15ml tablespoon and your cake won't rise properly.
• Cornflour for thickening — 33% less cornflour means a runny sauce or custard.
• Butter in pastry — less fat changes the texture entirely.
• Spices and salt — less impactful but still off.

For cooking (not baking) the difference is more forgiving — an extra splash of fish sauce or olive oil rarely ruins a dish. But for anything where chemistry matters, the gap is real.

The Cup Difference Too

While we're here: the Australian cup is 250ml, while the US cup is 236.6ml. That's less dramatic than the tablespoon gap, but it compounds in recipes that use both cups and tablespoons together.

A recipe calling for "2 cups and 3 tablespoons" has two regional measurement differences stacked on top of each other.

Australian Measurements at a Glance

Australia uses the metric cup (250 ml) and a 20 ml tablespoon — four teaspoons, not three. The teaspoon matches the rest of the world at 5 ml.

Measure	Australia	United States	UK / metric
Teaspoon	5 ml	4.93 ml	5 ml
Tablespoon	20 ml (4 tsp)	14.79 ml	15 ml
Cup	250 ml	236.6 ml	250 ml

Common ingredients — 1 Australian cup (250 ml) in grams

Ingredient	1 AU cup (250 ml)
Plain flour	130 g
Self-raising flour	130 g
Caster sugar	208 g
Brown sugar (packed)	229 g
Icing sugar	125 g
Butter	236 g
White rice (raw)	193 g
Honey	354 g
Milk or water	250 g

Need a specific millilitre amount in cups? These pages show the Australian (250 ml) cup answer next to the US cup: 120 ml to cups, 160 ml to cups and 180 ml to cups.

How to Fix It

If you're cooking an Australian recipe outside Australia: Multiply every tablespoon measurement by 1.33 (or add an extra third). So 3 tablespoons becomes 4 tablespoons in your local measure.

If you're outside Australia cooking a non-Australian recipe: Australian tablespoons are already larger, so you're likely adding more than intended. Use 3 of your teaspoons (15ml) to equal one standard tablespoon.

The easiest fix: Use KitchenConvert. When you set your recipe's cuisine to Australian, it automatically applies the 20ml tablespoon and 250ml cup to all conversions — so the maths is done for you.

A Real Example

Take a classic Australian Anzac biscuit recipe:

• 2 tablespoons golden syrup
• 1 tablespoon boiling water

In Australian measure: 40ml syrup, 20ml water. With a standard 15ml tablespoon: 30ml syrup, 15ml water.

That's 25% less liquid in the binding mixture — enough to produce a crumbly biscuit instead of a chewy one.

The Broader Picture

This is one of several regional measurement differences that affect recipe accuracy:

• Japanese recipes use a 200ml cup (vs 250ml metric)
• Old British Imperial recipes use a 284ml cup
• Dutch traditional recipes use a 150ml cup

Most recipe websites and apps ignore all of this and apply US measurements universally. For home cooks working across cuisines and countries, the result is recipes that are subtly — sometimes significantly — wrong.

KitchenConvert detects the recipe's cuisine and applies the correct regional measurements automatically. It's a small thing that makes a real difference.

Common questions

How many ml in a tablespoon in Australia?

An Australian tablespoon is 20 ml — equal to 4 teaspoons. The United States (14.79 ml), the UK and the rest of the metric world use a 15 ml tablespoon of 3 teaspoons. Always measure 20 ml for Australian recipes.

How many ml in a cup in Australia?

An Australian cup is 250 ml — the metric cup also used in the UK and New Zealand. A US cup is about 236.6 ml, so Australian cups are slightly larger.

What is 1/4 cup in grams in Australia?

A quarter of a 250 ml Australian cup is about 63 ml. The weight depends on the ingredient — roughly 33 g for plain flour or 52 g for caster sugar. Use the converter for an exact figure by ingredient.

Is an Australian teaspoon the same as elsewhere?

Yes. An Australian teaspoon is 5 ml, the same as the US, UK and metric standard. Only the tablespoon differs — Australia uses 20 ml while most countries use 15 ml.

The Short Version

If you cook Australian recipes: your tablespoon should be 20ml, not 15ml. If you cook non-Australian recipes in Australia: your tablespoon is bigger than the recipe expects. If you want it handled automatically: try KitchenConvert free →