Tablespoons to Milliliters Converter (tbsp to mL)

How to convert U.S. tablespoons to milliliters

To convert U.S. tablespoons to milliliters, multiply the number of U.S. tablespoons by 14.787.

Example: 1 tbsp = 14.787 mL.

A U.S. tablespoon is about 14.8 mL; metric recipes usually round it to 15 mL.

Tablespoons to Milliliters conversion chart

tbsp	mL
0.25 tbsp	3.697 mL
0.5 tbsp	7.393 mL
0.75 tbsp	11.09 mL
1 tbsp	14.787 mL
1.5 tbsp	22.18 mL
2 tbsp	29.574 mL
2.5 tbsp	36.967 mL
3 tbsp	44.36 mL
3.5 tbsp	51.754 mL
4 tbsp	59.147 mL
4.5 tbsp	66.54 mL
5 tbsp	73.934 mL
6 tbsp	88.721 mL
7 tbsp	103.51 mL
8 tbsp	118.29 mL
9 tbsp	133.08 mL
10 tbsp	147.87 mL
11 tbsp	162.65 mL
12 tbsp	177.44 mL
13 tbsp	192.23 mL
14 tbsp	207.01 mL
15 tbsp	221.8 mL
16 tbsp	236.59 mL
18 tbsp	266.16 mL
20 tbsp	295.74 mL
24 tbsp	354.88 mL
25 tbsp	369.67 mL
30 tbsp	443.6 mL
32 tbsp	473.18 mL
35 tbsp	517.54 mL
40 tbsp	591.47 mL
45 tbsp	665.4 mL
50 tbsp	739.34 mL
55 tbsp	813.27 mL
60 tbsp	887.21 mL
64 tbsp	946.35 mL
65 tbsp	961.14 mL
70 tbsp	1,035.1 mL
75 tbsp	1,109 mL
80 tbsp	1,182.9 mL
85 tbsp	1,256.9 mL
90 tbsp	1,330.8 mL
100 tbsp	1,478.7 mL
110 tbsp	1,626.5 mL
120 tbsp	1,774.4 mL
125 tbsp	1,848.3 mL
128 tbsp	1,892.7 mL
150 tbsp	2,218 mL
175 tbsp	2,587.7 mL
180 tbsp	2,661.6 mL
200 tbsp	2,957.4 mL
220 tbsp	3,253.1 mL
250 tbsp	3,696.7 mL
300 tbsp	4,436 mL
400 tbsp	5,914.7 mL
500 tbsp	7,393.4 mL
750 tbsp	11,090.1 mL
1,000 tbsp	14,786.8 mL

Metric vs. U.S. customary units

The United States uses U.S. customary units — inches, feet, miles, pounds, gallons and degrees Fahrenheit — for most everyday purposes. Canada officially adopted the metric system in the 1970s, so road signs, weather forecasts, gas pumps and food labels use kilometers, degrees Celsius, liters and grams. In practice many Canadians still use feet and inches for height, pounds for body weight and square feet for homes, which is why conversions come up constantly on both sides of the border.

Exact conversion factors

Since 1959 the inch, foot, yard, mile and pound have been defined in metric terms, so these conversions are exact, not approximations:

1 inch = 2.54 cm exactly, so 1 foot = 30.48 cm and 1 mile = 1.609344 km.
1 pound = 0.45359237 kg exactly; 1 ounce = 28.349523125 g.
1 U.S. gallon = 3.785411784 liters. The imperial gallon used in the U.K. is larger: 4.54609 liters.
1 acre = 4,046.8564224 m², and 1 hectare = 10,000 m² (about 2.471 acres).

Temperature is different because the scales have different zero points: °F = °C × 9/5 + 32 and °C = (°F − 32) × 5/9. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level, and −40 is the same in both scales.

Quick mental shortcuts

Kilometers to miles: multiply by 0.6 (100 km ≈ 60 miles; the exact figure is 62.1).
Kilograms to pounds: double it and add 10% (70 kg → 140 + 14 = 154 lb).
Celsius to Fahrenheit: double it and add 30 for a rough estimate (20 °C → 70 °F; the exact answer is 68 °F).
Liters to U.S. gallons: divide by 4 for a quick estimate (40 L ≈ 10 gallons; exactly 10.57).

Cooking and recipe conversions

U.S. recipes measure by volume — cups, tablespoons and teaspoons — while Canadian and most international recipes use milliliters and grams. A U.S. cup is about 237 mL, but Canadian "metric" measuring cups hold 250 mL, so the difference adds up in baking. For flour, sugar and butter, weighing in grams is more accurate than cups because the density of each ingredient differs.

Popular conversions

Pick a conversion below for a dedicated page with the formula, worked examples and a complete conversion chart.

Tips for accurate conversions

Keep full precision until the final step and round only the answer — rounding intermediate numbers can add noticeable errors, especially in recipes, construction and engineering. Always check which gallon, ounce or ton a source means: U.S. and imperial units share names but not sizes, and a "fluid ounce" measures volume while an "ounce" of weight measures mass. For temperatures, remember that a temperature difference converts differently from a temperature reading: a change of 10 °C equals a change of 18 °F, without adding 32.

Popular unit conversions

Frequently asked questions

How many centimeters are in an inch?

Exactly 2.54 centimeters. To convert inches to centimeters, multiply by 2.54; to convert centimeters to inches, divide by 2.54.

How do I convert kg to pounds?

Multiply kilograms by 2.20462. For example, 70 kg × 2.20462 = 154.3 lb.

What is the formula for Celsius to Fahrenheit?

Multiply by 9/5 (1.8) and add 32. For example, 25 °C × 1.8 + 32 = 77 °F.

Is a U.S. gallon the same as a Canadian gallon?

No. Canada sells gas by the liter, but when gallons are mentioned in Canada they are sometimes imperial gallons (4.546 L), which are about 20% larger than U.S. gallons (3.785 L).

How many square feet are in a square meter?

About 10.764 square feet. A 1,000 sq ft home is roughly 92.9 m².

Sources & methodology

This calculator was last reviewed on November 2, 2026. Figures are based on the following official and primary sources:

NIST – Handbook 44, Appendix C: General Tables of Units of Measurement

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