The short version
One US tablespoon is 14.7868 ml. That single factor runs the whole tool. Type a tablespoon figure and the milliliter equivalent appears instantly, with no button to press and no dropdown to dig through.
So 2 tablespoons is 29.57 ml, 3 tablespoons is 44.36 ml, and a half tablespoon comes out to about 7.39 ml. People often round a tablespoon to a flat 15 ml, and for cooking that’s perfectly fine. The tool keeps the exact number because some uses, like measuring a liquid medication, actually care about the difference.
Two places this matters, for opposite reasons
Cooking is the obvious one. Recipes written in the US lean on tablespoons (and teaspoons) for oils, vinegars, extracts, and sauces, while your measuring equipment might only show ml. Convert and you can follow along without guessing. A “4 tablespoons of olive oil” instruction is 59.1 ml, near enough to a quarter cup.
Medicine is the one to take seriously. Liquid medications, especially for kids, are often dosed in ml on the label but described in tablespoons or teaspoons in casual instructions, and mixing those up is a genuine dosing error. One tablespoon is 14.79 ml, but a teaspoon is only about 4.93 ml, roughly a third. Grabbing the wrong spoon means a threefold mistake. When the units involve a dose, use the exact figure and an actual measuring device, not the spoon from your cutlery drawer.
Handy reference points
A few of these are worth committing to memory:
- 1 tablespoon = 14.79 ml (often rounded to 15 ml)
- 1 teaspoon = 4.93 ml (rounded to 5 ml)
- 3 teaspoons = 1 tablespoon
- 2 tablespoons = 1 fluid ounce ≈ 29.57 ml
- 4 tablespoons = 1/4 US cup ≈ 59.1 ml
- 16 tablespoons = 1 US cup
That teaspoon-to-tablespoon ratio (3 to 1) is the one that saves you when a recipe only stocked one size of measuring spoon.
Using the converter
Enter a tablespoon value, read the milliliters. It updates as you type, no submit step. The reference table underneath lists the common amounts already worked out, so for standard measures you can skip typing entirely. Every calculation happens locally in your browser with the exact 14.7868 factor, so nothing you enter gets uploaded and it keeps running offline once the page loads.
Worth a note on tablespoon sizes worldwide: the US tablespoon is 14.79 ml, the UK and Canada use 15 ml, and Australia’s is a larger 20 ml. This tool uses the US standard by default since that’s what most recipes searched online assume, but the gap is small enough to ignore for cooking and large enough to matter for an Australian recipe that specifically calls for a 20 ml spoon.
FAQ
How many ml in a tablespoon?
14.7868 ml for a US tablespoon, commonly rounded to 15 ml. The UK and Canada define it as exactly 15 ml, and Australia uses 20 ml. The tool defaults to the US figure.
Is a tablespoon 15 ml or 20 ml?
Depends on the country. The US tablespoon is 14.79 ml, rounded to 15. Australia’s is the odd one out at 20 ml. For most recipes, treat a tablespoon as roughly 15 ml.
How many ml in a teaspoon?
About 4.93 ml for the US teaspoon, usually rounded to 5 ml. Three teaspoons make one tablespoon, so it’s a third of the larger spoon.
Can I use this for measuring medicine doses?
For the conversion, yes, it’s exact. But always measure liquid medicine with a proper dosing syringe or cup, not a kitchen spoon, since regular spoons vary wildly in size and a wrong dose is a real risk.
Does this need an internet connection?
No. It’s browser-side math with the factor built in, so it works offline after loading and never sends your numbers anywhere.