# Tbsp to mL Calculator

Convert tablespoons to milliliters instantly. Supports US, metric, and Australian tablespoons. 1 US tbsp = 14.787 mL. Includes teaspoons, fluid ounces, and cups.

## What this calculates

Quickly convert tablespoons to milliliters for cooking, baking, or medication measuring. Choose between US, metric, and Australian tablespoon sizes to get the right conversion.

## Inputs

- **Tablespoons** (tbsp) — min 0 — Enter the number of tablespoons.
- **Tablespoon Standard** — options: US (14.787 mL), Metric (15 mL), Australian (20 mL) — US and metric tablespoons are nearly identical. Australian tablespoons are larger at 20 mL.

## Outputs

- **Milliliters** (mL) — Volume in milliliters.
- **Teaspoons** (tsp) — Equivalent volume in teaspoons (1 US tsp = 4.929 mL).
- **Fluid Ounces** (fl oz) — Equivalent volume in US fluid ounces.
- **Cups** (cups) — Equivalent volume in US cups.

## Details

A tablespoon is one of the most common kitchen measurements, but its exact size depends on where you live. The US tablespoon is legally defined as 14.787 mL, the metric tablespoon used in most countries is exactly 15 mL, and the Australian tablespoon is 20 mL.

**Tablespoon Sizes by Region:**

| Region | Tablespoon Size |
|--------|-----------------|
| United States | 14.787 mL |
| Metric (international) | 15 mL |
| Australia | 20 mL |
| United Kingdom | 15 mL (metric) |

**Common Tablespoon to mL Conversions (US):**

| Tablespoons | Milliliters | Also Equal To |
|-------------|-------------|---------------|
| 0.5 tbsp | 7.39 mL | 1.5 tsp |
| 1 tbsp | 14.79 mL | 3 tsp |
| 2 tbsp | 29.57 mL | 1 fl oz |
| 3 tbsp | 44.36 mL | 1.5 fl oz |
| 4 tbsp | 59.15 mL | 0.25 cup |
| 8 tbsp | 118.29 mL | 0.5 cup |
| 16 tbsp | 236.59 mL | 1 cup |

**Practical tip:** When a recipe from Australia calls for tablespoons, those measures are about 35% larger than US tablespoons. If you're using US measuring spoons for an Australian recipe, add about a teaspoon extra for each tablespoon called for.

## Frequently Asked Questions

**Q: How many mL are in a tablespoon?**

A: A US tablespoon is 14.787 mL, a metric tablespoon is exactly 15 mL, and an Australian tablespoon is 20 mL. For everyday cooking, you can treat US and metric tablespoons as interchangeable since the difference is less than 1.5%.

**Q: How many teaspoons are in a tablespoon?**

A: There are 3 teaspoons in 1 US tablespoon. This is a useful kitchen shortcut: if you don't have a tablespoon measure, use 3 level teaspoons instead.

**Q: Why is the Australian tablespoon different from the US tablespoon?**

A: Australia adopted the metric system but kept a tablespoon size of 20 mL (4 metric teaspoons) rather than the international metric standard of 15 mL. This is a historical convention that stuck. Always check which tablespoon standard a recipe uses if it comes from Australia.

**Q: How do I convert mL back to tablespoons?**

A: Divide the milliliters by the tablespoon size for your region. For US tablespoons, divide by 14.787. For metric, divide by 15. For Australian, divide by 20. For example, 30 mL divided by 14.787 is about 2.03 US tablespoons.

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Source: https://vastcalc.com/calculators/conversion/tbsp-to-ml
Category: Conversion
Last updated: 2026-04-08