Farm Tools

Farm Tools

Farm Tools is the essential calculator app for farmers, agronomists, and anyone who works the land. Built for speed and simplicity, it puts the math you do every day right in your pocket.

Estimated Yield

Estimate corn yield before harvest using the ear-count method. Enter row spacing and kernel counts from sample ears and get an instant bushels-per-acre estimate.

Bin Capacity

Calculate grain bin storage in bushels. Enter the bin diameter and wall height and the app accounts for the cone at the base for an accurate total.

Sprayer Calculators

Dial in your application rates on the fly. Calculate injection rate, volume required, and gallons per hour — enter any two known values and get the third instantly.

Ohm's Law

Solve voltage, current, resistance, and wattage calculations in the field. Enter any two values and the other two are solved automatically — handy for electric fencing, sensors, and equipment wiring.

Pulley / Drive

Calculate pulley RPM and sheave sizes for belt-driven equipment. Enter any three values and the unknown is solved for you.

Tank Volume

Find the volume of round or square tanks in gallons. Supports cylinders, horizontal tanks, and rectangular containers.

Field Coverage

Calculate field area in acres from length and width. Great for estimating product needed and tracking coverage.

GPS Location

View your current coordinates and position on a map. Useful for recording field locations, fence corners, and equipment positions.

Yield Calculator

A quick general-purpose yield and harvest calculator.

Clean, fast, and works offline. No subscriptions. No ads.