309 tsp ≈ 6.4375 cup (Imperial; in US cups: 309 tsp = 7.7311 US cup). To convert teaspoons to cups, multiply by 0.020833344: 309 × 0.020833344 = 6.4375.
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: 309 × 0.020833344 = 6.4375.
- Answer: 309 tsp ≈ 6.4375 cup (rounded to 6 significant figures).
Teaspoons to Cups table
| Teaspoons (tsp) | Cups (cup) |
|---|---|
| 304 tsp | 6.3333 cup |
| 305 tsp | 6.3542 cup |
| 306 tsp | 6.375 cup |
| 307 tsp | 6.3958 cup |
| 308 tsp | 6.4167 cup |
| 309 tsp | 6.4375 cup |
| 310 tsp | 6.4583 cup |
| 311 tsp | 6.4792 cup |
| 312 tsp | 6.5 cup |
| 313 tsp | 6.5208 cup |
| 314 tsp | 6.5417 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: 309 US tsp = 5.3603 cup.
The cup here is the Imperial (UK) cup: 1 cup = 0.28413 L. A US cup is 0.236588 L.
In US cups: 309 tsp = 7.7311 US cup.