0.643 tsp ≈ 0.0133958 cup (Imperial; in US cups: 0.643 tsp = 0.0160877 US cup). To convert teaspoons to cups, multiply by 0.020833344: 0.643 × 0.020833344 = 0.0133958.
How to convert teaspoons to cups
cup = tsp × 0.020833344
- 1 tsp = 0.020833344 cup (and 1 cup = 47.999976 tsp).
- Multiply the amount by the factor: 0.643 × 0.020833344 = 0.0133958.
- Answer: 0.643 tsp ≈ 0.0133958 cup (rounded to 6 significant figures).
Teaspoons to Cups table
| Teaspoons (tsp) | Cups (cup) |
|---|---|
| 0.638 tsp | 0.0132917 cup |
| 0.639 tsp | 0.0133125 cup |
| 0.64 tsp | 0.0133333 cup |
| 0.641 tsp | 0.0133542 cup |
| 0.642 tsp | 0.013375 cup |
| 0.643 tsp | 0.0133958 cup |
| 0.644 tsp | 0.0134167 cup |
| 0.645 tsp | 0.0134375 cup |
| 0.646 tsp | 0.0134583 cup |
| 0.647 tsp | 0.0134792 cup |
| 0.648 tsp | 0.0135 cup |
| tsp | cup |
|---|---|
| 1 tsp | 0.0208333 cup |
| 5 tsp | 0.104167 cup |
| 10 tsp | 0.208333 cup |
| 50 tsp | 1.0417 cup |
| 100 tsp | 2.0833 cup |
| 1,000 tsp | 20.8333 cup |
Good to know
The tsp here is the Imperial (UK) teaspoon: 1 tsp = 0.00591939 L. A US teaspoon is 0.00492892 L.
In US teaspoons: 0.643 US tsp = 0.0111544 cup.
The cup here is the Imperial (UK) cup: 1 cup = 0.28413 L. A US cup is 0.236588 L.
In US cups: 0.643 tsp = 0.0160877 US cup.