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Accurate volume conversion tool for tbsp and mL — instant results
Convert tablespoons to millilitres instantly with precise calculations. Includes bidirectional conversion and detailed reference tables for cooking, baking, and medicine in 2026.
Professional volume conversion for cooking, baking, nutrition, and medicine
Convert tablespoons to millilitres using the precise US tablespoon factor of 1 tbsp = 14.7868 mL, or the rounded metric/nutrition label standard of 15 mL. Our tool uses the exact US customary definition to deliver precise results every time — perfect for recipe scaling, liquid medication dosing, and nutrient calculations.
Switch seamlessly between tbsp to mL and mL to tbsp conversion modes. A single input delivers results in both directions, plus a full multi-unit volume breakdown covering teaspoons, fluid ounces, cups, litres, and cubic centimetres for complete flexibility in the kitchen and lab.
Ideal for home cooks scaling international recipes, bakers needing precise liquid measurements, pharmacists and caregivers measuring liquid medications, nutrition professionals tracking volumes, and students studying unit conversions. This tool provides fast, reliable answers for every scenario.
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The tablespoon is a volume unit rooted in culinary tradition, while the millilitre is the standard SI metric unit for small liquid volumes. The exact conversion depends on which tablespoon standard is being used: 1 US tablespoon = 14.7868 mL, while the metric tablespoon (used in Australia, Canada, and the UK) equals exactly 15 mL. For nutrition labelling purposes, the US Food and Drug Administration also rounds the US tablespoon to 15 mL. This calculator uses the precise US tablespoon value of 14.7868 mL for maximum accuracy.
Understanding this conversion is essential in the kitchen, pharmacy, and laboratory. A recipe calling for 3 tablespoons of olive oil requires exactly 44.36 mL — a figure that matters when measuring precisely with a graduated cylinder or syringe. Liquid medications such as cough syrup are routinely dosed in tablespoons but measured in mL by caregivers and healthcare professionals. Getting this conversion right can be the difference between a perfect recipe and a failed one — or, in medical contexts, a safe and accurate dose.
1 US tbsp = 14.7868 mL | 1 metric tbsp = 15 mL (exact)
Use the quick-reference table below to look up common tablespoon to millilitre conversions. This table covers values from 1 tbsp up to 40 tbsp, covering everyday cooking quantities from a single tablespoon through to large batch recipe measurements.
| Tablespoons (tbsp) | Millilitres (mL) | Teaspoons (tsp) | Fluid Ounces (fl oz) |
|---|---|---|---|
| 1 tbsp | 14.79 mL | 3 tsp | 0.5 fl oz |
| 2 tbsp | 29.57 mL | 6 tsp | 1.0 fl oz |
| 3 tbsp | 44.36 mL | 9 tsp | 1.5 fl oz |
| 4 tbsp | 59.15 mL | 12 tsp | 2.0 fl oz |
| 5 tbsp | 73.93 mL | 15 tsp | 2.5 fl oz |
| 6 tbsp | 88.72 mL | 18 tsp | 3.0 fl oz |
| 8 tbsp | 118.29 mL | 24 tsp | 4.0 fl oz |
| 10 tbsp | 147.87 mL | 30 tsp | 5.0 fl oz |
| 12 tbsp | 177.44 mL | 36 tsp | 6.0 fl oz |
| 16 tbsp | 236.59 mL | 48 tsp | 8.0 fl oz |
| 20 tbsp | 295.74 mL | 60 tsp | 10.0 fl oz |
| 24 tbsp | 354.88 mL | 72 tsp | 12.0 fl oz |
| 32 tbsp | 473.18 mL | 96 tsp | 16.0 fl oz |
| 40 tbsp | 591.47 mL | 120 tsp | 20.0 fl oz |
Tablespoons are a familiar cooking unit in the United States and much of the English-speaking world, while millilitres are the standard in metric countries and in every scientific, medical, and nutritional context globally. As international recipes become more widely shared online, cooks regularly encounter measurements in unfamiliar units. Knowing how to convert tablespoons to mL accurately allows you to follow any recipe precisely, regardless of its country of origin.
International recipes frequently mix tablespoon and mL measurements. A French sauce recipe may call for 30 mL of cream, while a US recipe uses tablespoons. Converting accurately ensures the right flavour balance and texture — especially critical in baking where small volume errors compound across multiple ingredients.
Cough syrups, liquid antibiotics, and over-the-counter remedies are often labelled in tablespoons (tbsp) but measured with graduated medicine cups or syringes marked in mL. Converting correctly is essential for safe and accurate dosing — particularly for children, where dose precision matters most.
Nutrition labels, dietary tracking apps, and dietitian guidelines routinely use mL for liquid volumes. If your recipe lists olive oil in tablespoons but your tracker records in mL, a fast conversion ensures your calorie and macronutrient counts stay accurate without manual guesswork.
Laboratory protocols, chemistry experiments, and school science projects increasingly reference household measurements like tablespoons for accessible demonstrations. Converting to mL allows students and researchers to replicate experiments precisely using standard lab glassware and graduated pipettes.
US tablespoon: 14.7868 mL — used in American recipes and this converter.
Metric tablespoon: 15 mL (exact) — used in Australia, Canada, the UK, and for US nutrition labels.
UK tablespoon (traditional): approximately 17.76 mL — now largely replaced by the 15 mL metric standard.
For everyday cooking, the difference between 14.79 and 15 mL is negligible — but for medical dosing and scientific work, always confirm which standard applies.
Converting tablespoons to mL manually is straightforward — just multiply by the right factor for your tablespoon standard. Follow these steps for accurate results:
Convert 4 tbsp of olive oil to mL:
4 × 14.7868 = 59.15 mL
Convert 2.5 tbsp of honey to mL:
2.5 × 14.7868 = 36.97 mL
Convert 100 mL of milk back to tbsp:
100 × 0.067628 = 6.76 tbsp
Do not assume all tablespoons are the same size. US recipes use 14.7868 mL, Australian recipes use 20 mL (a traditional Australian tablespoon is 4 teaspoons = 20 mL), and most other metric countries use 15 mL. If you are following a recipe from Australia, 1 tbsp = 20 mL — significantly more than the US or metric standard. Always check the recipe's country of origin before converting.
A tablespoon (tbsp) is a unit of volume used primarily in cooking and baking. In the US customary system, 1 tablespoon equals 3 teaspoons or ½ fluid ounce, and is precisely defined as 14.78676478 mL. Tablespoons are abbreviated as tbsp, T, Tbls, or Tb. The tablespoon exists in several regional variants, with the US, metric (15 mL), and traditional Australian (20 mL) versions being the most commonly encountered.
A millilitre (mL) is a metric unit of volume equal to one-thousandth of a litre (0.001 L) and exactly 1 cubic centimetre (cm³). It is an SI unit accepted for use with the International System of Units and is the standard measurement for small liquid volumes in cooking, medicine, science, and industry worldwide. For related volume conversions, see our BTU to Joules Converter for energy-related measurement tools.
Symbol: tbsp, T, Tbls
System: US Customary / Imperial
Equals: 3 tsp | ½ fl oz | 14.7868 mL (US)
Common use: Cooking, baking, recipes, liquid medication dosing, nutrition labelling
Symbol: mL, ml
System: SI Metric
Equals: 0.001 L | 1 cm³ | 0.067628 US tbsp
Common use: Cooking, medicine, laboratory measurements, beverage volumes, nutrition tracking
Learn how the US Food and Drug Administration defines tablespoon measurements for nutrition labels, including how the US tablespoon is rounded to 15 mL for standardised food packaging and serving size declarations.
Learn More →Explore the complete guide to metric kitchen measurements — from millilitres and grams to litres and kilograms. Understand how international recipes use metric units and how to convert any US customary cooking measurement to metric with confidence.
Explore Guide →Understand the importance of accurate liquid medication measurement, including why mL is preferred over tablespoons for dosing accuracy, how to use graduated medicine cups and oral syringes, and how to convert between tbsp and mL safely.
View Reference →