This calculator computes the hourly water application rate of lower flow drip or microsprinkler irrigation systems. Use this calculator if the drippers or microsprinklers are rated in gallons per hour (GPH).

Enter your orchard specific information into the yellow boxes and the results will display under the ‘Calculation Results’ heading below.

See our FAQs for more information on using Weekly Crop ET Reports or check our other ET calculators if you need a different conversion.