# Distance Covered by a Person in Upstream Downstream Calculator

Coverage a particular distance by a person in upstream and downstream can be calculated easily by using this distance covered by a person in upstream downstream calculator. The speed of person in still or stagnant water, the speed of the stream flowing and time taken to cover upstream than downstream are the inputs required for this online tool. The result of distance covered by a person in a journey is provided in the km units. Reliability is the key advantage of this tool.

Coverage a particular distance by a person in upstream and downstream can be calculated easily by using this distance covered by a person in upstream downstream calculator. The speed of person in still or stagnant water, the speed of the stream flowing and time taken to cover upstream than downstream are the inputs required for this online tool. The result of distance covered by a person in a journey is provided in the km units. Reliability is the key advantage of this tool.

Code to add this calci to your website

#### Formula:

Distance covered by person in journey (km) = ((a^{2} - b^{2})t) / 2b
**Where,**
a = Speed in still water (km/hr)
b = Speed of stream (km/hr)
t = Time taken in upstream than downstream (hours)

### Example:

Calculate the distance covered by a person in upstream downstream using the inputs of speed in still water of 20 km/hr, stream speed of 15 km/hr and time taken in upstream & downstream of 10 hours.

#### Solution:

Distance covered by a person in upstream downstream = ( ( 20^{2} - 15^{2} ) 10 ) / 2 x 15

= 58.333333 km