Tablespoon to Teaspoon: Every Question Answered
Updated 17 April 2026
25 questions grouped by topic. Each answer links to the detailed reference page.
Quick Conversions
How many teaspoons in a tablespoon?
Three teaspoons equal one tablespoon in the US and UK. In Australia, four teaspoons equal one tablespoon because the Australian tablespoon is 20 ml rather than 15 ml.
How many tablespoons in a cup?
Sixteen tablespoons equal one US cup (236.59 ml). The UK cup is 284 ml, which is approximately 19 tablespoons. The Australian cup is 250 ml, which is 12.5 Australian tablespoons.
What is half a tablespoon in teaspoons?
Half a tablespoon equals 1.5 teaspoons. The most accurate method is to measure one teaspoon plus half a teaspoon, rather than filling a tablespoon halfway.
What is a quarter tablespoon in teaspoons?
One quarter tablespoon equals three-quarters of a teaspoon (0.75 tsp or 3.7 ml). Measure by filling a 1/4 teaspoon measure three times.
What is 2 tablespoons in teaspoons?
Two tablespoons equals six teaspoons. This is also one US fluid ounce (approximately 30 ml) or one-eighth of a US cup.
What is 3 tablespoons in teaspoons?
Three tablespoons equals nine teaspoons, or 44.4 ml, or one and a half US fluid ounces.
What is 4 tablespoons in teaspoons?
Four tablespoons equals twelve teaspoons, which is also one-quarter of a US cup (59.15 ml). This is one of the most useful kitchen equivalents.
What is 1 tablespoon in ml?
One US tablespoon is 14.79 ml (commonly rounded to 15 ml). One UK tablespoon is exactly 15 ml. One Australian tablespoon is exactly 20 ml.
Is 1 tablespoon the same as 1 fluid ounce?
No. One tablespoon is half a fluid ounce (0.5 fl oz = 15 ml). One fluid ounce equals two tablespoons (30 ml).
Country Variants
Is an Australian tablespoon different?
Yes. The Australian tablespoon is 20 ml (4 teaspoons). The US and UK tablespoon is 15 ml (3 teaspoons). The teaspoon is 5 ml in all three countries. When cooking from a recipe of a different country, you need to adjust tablespoon quantities.
How do I adjust a US recipe for Australian tablespoons?
When a US recipe says one tablespoon, use three-quarters of your Australian tablespoon (15 ml instead of 20 ml), or simply measure three teaspoons instead of one Australian tablespoon.
Is the UK tablespoon the same as the US tablespoon?
Yes. Both the US and UK tablespoon are 15 ml and equal three teaspoons. The main difference between US and UK measurements comes in cups (US cup 236 ml vs UK cup 284 ml) and pints (US pint 473 ml vs UK imperial pint 568 ml).
What is a dessert spoon?
A dessert spoon is 10 ml, which equals two teaspoons. It is a UK unit found in older British recipe books. Modern UK recipes do not use it; US recipes never use it.
Dry vs Liquid
Is a tablespoon of flour the same weight as a tablespoon of water?
No. By volume both are 15 ml, but by weight they differ. One tablespoon of water weighs 15 grams. One tablespoon of all-purpose flour weighs about 8 grams. The difference is density.
Does it matter how I scoop flour into a tablespoon?
Yes. Scooping directly from the bag packs flour and can add 25 to 50% more by weight compared to spooning flour into the tablespoon and levelling. For baking, always use the spoon-and-level method or weigh your flour.
How much does a tablespoon of honey weigh?
A tablespoon of honey weighs approximately 21 grams, significantly more than water because honey is denser (specific gravity around 1.4).
Salt Brands
Why does my dish taste too salty when I follow the recipe exactly?
A common cause is using a different salt brand than the recipe tested with. Diamond Crystal kosher salt weighs about 9 g per tablespoon. Morton kosher salt weighs about 15 g. If the recipe used Diamond Crystal and you used Morton, you added nearly double the salt.
How do I substitute Morton for Diamond Crystal kosher salt?
Use approximately half to two-thirds the volume of Morton to match the same saltiness as Diamond Crystal. By weight, measure to match grams rather than tablespoons.
Medicine
Can I use a kitchen teaspoon for liquid medicine?
No. Kitchen spoons are not calibrated and vary from 2.5 ml to 7 ml. For any medicine, use the dosing syringe or cup supplied with the medicine. If none was provided, ask your pharmacist for a free oral syringe.
Is a medical teaspoon 5 ml?
Yes, a calibrated medical teaspoon is defined as 5 ml. This is the same as the standard teaspoon measurement used in cooking. The danger is using an uncalibrated household spoon, which may not be 5 ml.
Cooking Terms
What does scant tablespoon mean?
A scant tablespoon means slightly less than full, roughly 83% of a tablespoon. Fill the spoon and leave a small gap. It is used when a recipe wants just under one spoon of an ingredient.
What is a heaping tablespoon?
A heaping tablespoon is filled above the rim with as much as will stay on. This is roughly 130 to 150% of a level tablespoon. Only use this when the recipe specifically says heaping.
What does packed tablespoon mean?
A packed tablespoon means pressed firmly into the spoon so it holds its shape when tipped out. Almost always specified for brown sugar, which has enough moisture to compact.
Tools and Precision
Do I need measuring spoons?
Yes for baking. Household cutlery spoons vary significantly in volume and are not reliable. A set of calibrated measuring spoons (1/4 tsp, 1/2 tsp, 1 tsp, 1/2 tbsp, 1 tbsp) is inexpensive and essential for consistent results.
When should I use a kitchen scale instead of spoons?
For baking, weighing flour, butter, and sugar is more accurate than measuring by volume. Density differences between brands, scoop methods, and ingredient moisture content all affect volume measurements. Scales eliminate all of this variation.