Own Machinery vs. Custom Hire Calculator
Ownership trades a fixed annual commitment for a lower incremental cost on each additional acre. Custom hire keeps cost variable. This calculator shows the current annual difference and the acreage where those two cost lines cross.
Run your numbers
Example values are loaded to show how the tool works. Replace every field with your own records or planning assumptions. Nothing entered here leaves your browser.
What the assumptions produce
Acres where ownership and custom-hire cost are equal.
Fixed cost plus per-acre operating cost.
Custom rate multiplied by entered acres.
Lower-cost option under the entered assumptions.
How this calculator works
- 1Separate annual ownership costs from the costs that increase with each acre.
- 2Subtract owned operating cost per acre from the comparable custom rate to find the per-acre contribution toward fixed ownership cost.
- 3Divide fixed cost by that contribution, then compare annual costs at the acres entered.
Reading the result
- If the custom rate is not higher than owned operating cost, ownership has no finite cost break-even under these assumptions.
- Timeliness, field loss, operator skill, financing liquidity, repair downtime, and access to a dependable custom operator are not priced automatically.
- Count only custom acres that are realistic and repeatable; speculative outside work can make a purchase appear safer than it is.
Reproduce the method
These are the specific public references used to define the calculation and its interpretation. Methodology reviewed August 15, 2026.
- Oklahoma State University Extension — Machinery Ownership versus Custom Harvest
Partial-budget method and break-even acreage formula.
- Iowa State University Extension — Machinery Sharing Manual
Allocating ownership and operating costs according to machinery use.
Related farm calculators
Machinery Ownership Cost
Estimate annual depreciation, interest on investment, taxes-insurance-housing, total machinery cost, and cost per acre.
Crop Break-Even Price
Calculate the price per bushel your crop must earn to cover production, overhead, land, and marketing costs using your own farm assumptions.
Crop Profit Per Acre
Stress-test crop revenue, total cost, net return per acre, whole-enterprise return, and operating margin with your yield and price assumptions.