Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| joule | watt hour | kilowatt hour | electronvolt | calorie |
| --- | --- | --- | --- | --- |
| 1 | 2.77778 × 10 −4 | 2.77778 × 10 −7 | 6.241 × 10 18 | 0.239 |
| 3,600 | 1 | 0.001 | 2.247 × 10 22 | 859.8 |
| 3.6 × 10 6 | 1,000 | 1 | 2.247 × 10 25 | 8.598 × 10 5 |
| 1.602 × 10 −19 | 4.45 × 10 −23 | 4.45 × 10 −26 | 1 | 3.827 × 10 −20 |
| 4.1868 | 1.163 × 10 −3 | 1.163 × 10 −6 | 2.613 × 10 19 | 1 |
Question:
How many calories is 1 watt hour?
Answer:
859.8