Cost per Feature Calculator
Analyse whether a product feature may generate enough revenue to justify development cost.
Feature ROI details
This calculator auto-updates when values change.
Compare development cost with expected revenue lift from a product feature.
Feature ROI
100.0%
The feature could create £36,000 of revenue over 12 months against £18,000 of build cost.
Feature cost
£18,000
Expected revenue lift
£36,000
Net value
£18,000
ROI
100.0%
About This Cost per Feature Calculator
Cost per Feature Calculator is designed for practical business planning, not abstract spreadsheet modelling. It turns a common commercial decision into a clearer number so you can compare options before committing time, money, or client expectations.
Product teams can overbuild when feature requests are treated as proof of revenue. A feature needs enough adoption, retention, pricing power, or efficiency gain to justify its cost.
The result is an estimate based on the inputs you provide. Real outcomes depend on taxes, contracts, payment timing, market demand, client behaviour, and operating costs.
Practical Example
A GBP 18,000 feature that lifts revenue by GBP 2.50 per month for 1,200 users creates GBP 36,000 over 12 months, before considering support and maintenance.
The useful part is not only the headline result. The supporting breakdown shows which assumption drives the outcome and where a small change would make the biggest difference.
How to Use This Strategically
Use the result to prioritise work. Features with weak direct ROI may still be worth building for retention or strategy, but the trade-off should be explicit.
Run a conservative scenario and an optimistic scenario. If the decision only works under perfect assumptions, it probably needs a stronger margin of safety.
Common Mistakes to Avoid
Avoid using best-case inputs for billable time, conversion, churn, client stability, or costs. Business calculators are most useful when they reveal risk early rather than confirming a plan you already wanted to believe.
If the result affects pricing, hiring, contracts, product direction, or cash reserves, compare it with real accounting data and professional advice before making a major decision.
How to Use This Calculator
- 1
Enter realistic inputs
Use current numbers where possible, and avoid best-case assumptions unless you are deliberately testing upside.
- 2
Review the headline result
Start with the main result, then compare the supporting metrics underneath it.
- 3
Test a second scenario
Change the weakest assumption to see whether the decision still works.
- 4
Use the output for planning
Treat the result as a planning signal, not as a guaranteed business outcome.
Frequently Asked Questions
What does the Cost per Feature Calculator do?v
Analyse whether a product feature may generate enough revenue to justify development cost.
Are the results exact?v
No. They are estimates based on the numbers you enter and should be checked against real business records.
Can I use this for client or investor decisions?v
Yes as a planning aid, but important decisions should be supported by accounting, legal, tax, or commercial advice where relevant.
Why should I test multiple scenarios?v
Business plans are sensitive to assumptions. A low, expected, and high scenario gives a more useful range than one perfect-looking result.