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Cups to Tablespoons Converter

Convert U.S. cups (cup) to U.S. tablespoons (tbsp) with the exact formula, worked examples and a full conversion chart.

Updated By TrueCalcu Editorial Team Sources
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How to convert U.S. cups to U.S. tablespoons

To convert U.S. cups to U.S. tablespoons, multiply the number of U.S. cups by 16.

Example: 0.25 cup = 4 tbsp.

There are 16 tablespoons in a U.S. cup, so ¼ cup is 4 tablespoons.

Cups to Tablespoons conversion chart

cuptbsp
0.25 cup4 tbsp
0.5 cup8 tbsp
0.75 cup12 tbsp
1 cup16 tbsp
1.5 cup24 tbsp
2 cup32 tbsp
2.5 cup40 tbsp
3 cup48 tbsp
3.5 cup56 tbsp
4 cup64 tbsp
4.5 cup72 tbsp
5 cup80 tbsp
6 cup96 tbsp
7 cup112 tbsp
8 cup128 tbsp
9 cup144 tbsp
10 cup160 tbsp
11 cup176 tbsp
12 cup192 tbsp
13 cup208 tbsp
14 cup224 tbsp
15 cup240 tbsp
16 cup256 tbsp
18 cup288 tbsp
20 cup320 tbsp
24 cup384 tbsp
25 cup400 tbsp
30 cup480 tbsp
32 cup512 tbsp
35 cup560 tbsp
40 cup640 tbsp
45 cup720 tbsp
50 cup800 tbsp
55 cup880 tbsp
60 cup960 tbsp
64 cup1,024 tbsp
65 cup1,040 tbsp
70 cup1,120 tbsp
75 cup1,200 tbsp
80 cup1,280 tbsp
85 cup1,360 tbsp
90 cup1,440 tbsp
100 cup1,600 tbsp
110 cup1,760 tbsp
120 cup1,920 tbsp
125 cup2,000 tbsp
128 cup2,048 tbsp
150 cup2,400 tbsp
175 cup2,800 tbsp
180 cup2,880 tbsp
200 cup3,200 tbsp
220 cup3,520 tbsp
250 cup4,000 tbsp
300 cup4,800 tbsp
400 cup6,400 tbsp
500 cup8,000 tbsp
750 cup12,000 tbsp
1,000 cup16,000 tbsp

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:

Spotted an error? Tell us and we'll fix it quickly. Read how we build and update our tools in our editorial policy.

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