Convert US Cup to Metric Tablespoon
Convert us cups to metric tablespoons instantly. 1 us cup = 15.7725491 metric tablespoon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Metric Tablespoon to US Cup converter for the reverse conversion.
Units explained
US Cup
A US customary cup is one sixteenth of a US gallon (236.588 mL).
Standardized for American cooking; distinct from the 240 mL US legal cup and the 250 mL metric cup.
The standard US cooking-volume unit in recipes.
US customary cooking measure.
Metric Tablespoon
A metric tablespoon is exactly 15 milliliters.
Adopted with metric cooking standards (Australia uses 20 mL).
Standard metric cooking measure for liquids.
Metrication.
US Cup to Metric Tablespoon conversion formula
The relationship between us cups and metric tablespoons:
To convert us cups to metric tablespoons, multiply the value in us cups by 15.7725491. To reverse, multiply metric tablespoons by 0.0634012926.
How to use this converter
Type a value into the calculator. The result in metric tablespoons updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Metric Tablespoon to US Cup converter for the reverse direction.
Step-by-step: convert us cups to metric tablespoons
- Write down the value in us cups (cup).
- Multiply that value by the factor 15.7725491.
- The product is the equivalent value in metric tablespoons (tbsp).
- To reverse, multiply the metric tablespoon value by 0.0634012926.
Worked examples
Example 1 — Convert 1 cup to tbsp:
1 × 15.7725491 = 15.7725491 tbsp
Example 2 — Convert 100 cup to tbsp:
100 × 15.7725491 = 1577.25491 tbsp
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 us cups), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 cup × 15.7725491 = 47.3176473 tbsp
Real-world example — Plastic-film thickness alternates
A 150-us cup plastic film converts cleanly to metric tablespoons — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 cup × 15.7725491 = 2365.882365 tbsp
Real-world example — Hair-width scale measurements
A 70-us cup measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like metric tablespoons for direct comparison across supplier datasheets.
70 cup × 15.7725491 = 1104.078437 tbsp
US Cup to Metric Tablespoon conversion table
Standard reference values for converting us cups to metric tablespoons:
| US Cup [cup] | Metric Tablespoon [tbsp] |
|---|---|
| 0.01 | 0.157725491 |
| 0.1 | 1.57725491 |
| 1 | 15.7725491 |
| 2 | 31.5450982 |
| 3 | 47.3176473 |
| 4 | 63.0901964 |
| 5 | 78.8627455 |
| 10 | 157.725491 |
| 20 | 315.450982 |
| 30 | 473.176473 |
| 40 | 630.901964 |
| 50 | 788.627455 |
| 100 | 1577.25491 |
| 500 | 7886.27455 |
| 1000 | 15772.5491 |
Frequently asked questions
How many metric tablespoons is 1 us cup?
How do I convert us cups to metric tablespoons?
How do I convert metric tablespoons back to us cups?
How many metric tablespoons is 100 us cups?
Popular volume unit conversions
Convert US Cup to other volume units
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Metric / SI (8 units)
US Customary (Liquid) (7 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 cup = 15.7725491 tbsp) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.