Free Operating Expense Ratio Calculator

Measure the proportion of gross income consumed by operating expenses to gauge property management efficiency.

USD
USD

Operating Expense Ratio

40.0%

Net Operating Income$33,000
NOI Ratio60.0%

Operating Expense Ratio vs Total Operating Expenses

Operating Expense Ratio

The OER shows what percentage of a property's gross income is spent on operating costs. A lower OER indicates more efficient property management.

Formula

OER = Operating Expenses / Effective Gross Income x 100

Benchmarks

  • Single-family rentals: 35-45%
  • Small multifamily: 40-50%
  • Large apartment complexes: 45-55%
  • Commercial office: 40-50%
  • Example Calculation

    A property has $22,000 in operating expenses on $55,000 effective gross income.

    1. 01OER = $22,000 / $55,000 x 100 = 40.0%
    2. 02NOI = $55,000 - $22,000 = $33,000
    3. 03NOI ratio = $33,000 / $55,000 x 100 = 60.0%
    4. 04A 40% OER means 40 cents of every income dollar goes to expenses

    Frequently Asked Questions

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