Development Cost ROI Calculator
Compare internal component build investment against Blazorise licensing across your selected ownership horizon.
Enter build effort, delivery impact, and ownership risk assumptions to estimate internal cost, TCO, Blazorise license spend, savings, and time-to-market advantage.
Estimate the cost of building internal UI capabilities versus licensing Blazorise over your selected time horizon.
1. Build Effort
How many UI components do you need?
Examples: data grid, forms, charts, scheduler.
Average hours to build one component
Design, development, testing, documentation, and production hardening.
How many developers will work on this?
Used to estimate coordination overhead and license seats.
Developer cost per hour
Fully loaded cost including employment, overhead, and delivery coordination.
2. Delivery & Business Impact
Months saved by using prebuilt components
Estimated financial impact of launching one month earlier
Revenue, cost savings, or strategic advantage.
3. Long-Term Ownership & Risk
Annual maintenance effort (% of build cost)
Bug fixes, upgrades, improvements, regression testing, and provider compatibility.
Number of years for comparison
Additional effort for testing & hardening (%)
Risk & complexity adjustment (%)
Unexpected scope, edge cases, production defects, and rework.
Blazorise license tier used for comparison
Selected license price: €990 per developer/year.
Results
Total Cost to Build Internally
€243,017
3-Year Total Cost of Ownership
€374,246
Total Cost with Blazorise (incl. license)
€142,438
Blazorise License Cost (3 Years)
€17,820
6 seats × €990 × 3 years
Cost Difference (In-House − Blazorise)
+€231,808
Time-to-Market Advantage
€140,000
4 months x €35,000 per month
Total Benefit (Savings + Faster Delivery)
+€371,808
Build effort (in-house) 2,859h
Coordination overhead (in-house) 9%
Implementation effort with Blazorise 1,107h
Coordination overhead with Blazorise 3%
Annual maintenance (in-house) €43,743
Annual maintenance with Blazorise €10,165
Developer license seats 6
License cost (3 years) €17,820
Total cost with Blazorise €142,438
Planning horizon 3 years
- Internal build cost starts from components x hours per component x developer hourly cost.
- Internal cost is adjusted for testing, hardening, risk, platform overhead, and coordination overhead.
- Blazorise still assumes implementation work: 55% of base build effort before reduced hardening, risk, coordination, and maintenance factors.
- License cost uses annual Enterprise pricing from the commercial pricing constants.
- Time-to-market advantage is months saved x estimated business value per month.
All values represent estimated spend and savings for this scope. Use the emailed summary as a review aid, not as a formal quote.