Runoff Estimator/Pond Refill Calculator

Use this calculator to estimate the amount of water that is returning to your pond from irrigation and rainfall events. There are a number of factors such as rainfall intensity, soil compaction, how wet or dry the soils are etc. that will impact runoff. This tool is meant to provide you with a rough estimate of how much water is returning to your pond.

Estimate Contributing Area
Map to sketch for Area
Enter dimensions
Enter average width and length for more rectangular area
Average width
Average length

Enter average diameter for more circular area
Average diameter

Precipitation and Area Information

Volume of Water to the Pond