Build or Buy Calculator
Compare the total cost of building software or a product in-house with buying a ready-made solution over several years.
Compare Your Options And Get Clear Answers
Compare the total cost of building software or a product in-house with buying a ready-made solution over several years.
Build or Buy Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Build Quick Guide
Typical values for reference.
| Build £ | Buy/yr £ | Years | Cheaper |
|---|---|---|---|
| 60000 | 25000 | 1 | Buy |
| 60000 | 25000 | 3 | Buy |
| 60000 | 25000 | 5 | Build |
| 60000 | 25000 | 10 | Build |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Build or Buy Calculator FAQ
Answers to common questions about this calculator.
When it is core to your business or needs custom fit and the cost is lower over time.
Staff time, bugs, security and opportunity cost.
Build = upfront + upkeep x years; buy = setup + subscription x years.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.