How this calculator works.
For SDE only, it multiplies your entered earnings by the published sold-business lower and upper quartile multiples: 1.99 and 3.33. It also shows the median multiple comparison at 2.58. The source is BizBuySell’s reported 2021–2025 HVAC sales.
The interval describes a historical marketplace comparison. It is not a statistical confidence interval, current offer, appraisal or forecast. The tool makes no hidden adjustments for maintenance contracts, owner involvement, geography or customer mix. Those details need evidence and individual review.
A cohort-fit notice appears when revenue exceeds $2,516,714 or SDE exceeds $507,236—the source’s published sold-business upper quartiles. This is a transparent product caution, not a valuation threshold or a rule that larger companies cannot use SDE.
For EBITDA, uncertain earnings or losses, the tool provides a next step rather than an unsupported number. It does not calculate equity proceeds, taxes, debt, working capital, fees or financing terms.
Read the full benchmark methodology and datasetNeed a company-specific answer?
A professional review should identify comparable transactions and the assumptions about earnings, assets and terms. Read the valuation guide, or request a conversation below.