Machinery Economics Calculator

This calculator has been developed as part of the GRDC funded Stubble Initiative Project. Many farms are starting to reconsider use of a stripper front during harvest, but it is important to understand and quantify the realistic gains that may be achieved through this investment. This calculator looks at the key drivers for profit produced by this investment - grain yield, grain price, crop type, rainfall during harvest, area covered, fuel price and labour rates - and helps you to quantify changes in these and determines the real return on investment of this potential purchase.

Farm Areas

Enter details of the area under each crop type in an average season.

Wheat
ha
Barley
ha
Non-stripper crops
(eg lentils, chickpeas, canola)
ha

7-year Seasonal Breakdown

We'll calculate your ROI across the 7 year lifespan of an average piece of farm machinery. Enter the breakdown of low yield, medium yield and high yield seasons that you'd normally expect to see in a 7 year period.

Low yielding years
years
Medium yielding years
years
High yielding years
years

Machinery Costs

Enter the purchase price or current value and the end value after 7 years for your header, draper front and stripper front.

Purchase Price
or Current Value
End Value
after seven years
Header
$
$
Draper Front
$
$
Stripper Front
$
$

Running Costs

Enter details of your farm's running costs.

Labour
$ /hr
Fuel
$ /L
Contractor
$ /hr

Harvest details

Enter details about your typical harvest practices.

Harvest Start Date
Harvesting Hours Per Day
hours
Nearest weather station

Scenarios

Choose up to 3 scenarios for comparison, and we'll compare them all against a standard harvest with a draper front.

All crops harvested with draper front

vs

This calculator has been developed as part of the GRDC-funded Stubble Initiative Project.