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ROI & Break-even

ROI
Cost / Investment
Final value / Total revenue (optional)
Net profit (optional)
If set, ROI uses profit ÷ cost and ignores Final/Revenue.
Holding period (years, optional)
Used for annualization (CAGR or simple).
Net profit
0
ROI
0%
Annualized (CAGR)
20%
Options
Display
Display only; internal math uses full precision.

About ROI & Break-even

ROI is (profit ÷ cost). Use net profit directly, or supply cost and final value/revenue. For multi-year investments, CAGR reflects the geometric annual return: (Final/Initial)^(1/years) − 1.

Break-even units are computed as Fixed / (Price − Variable). Rounding up shows whole-unit reality. If you provide a sales rate (units per month/week/day), we estimate the time to reach break-even.

  • Negative ROI is supported (losses).
  • Contribution margin must be positive to break even.
  • This tool is deterministic and ignores taxes/discount rates; treat as a quick estimate.