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UK National Savings and Investments NSandI Prize Rate Calculator
Expected prize value on NS&I Premium Bonds.
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Expected prizes
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Expected prize value on NS&I Premium Bonds.
UK National Savings and Investments NSandI Prize Rate Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Expected prizes = holding x prize rate
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
UK Quick Guide
Typical values for reference.
| Holding (GBP) | Prize rate (%) | Spare | Expected prizes |
|---|---|---|---|
| 20000 | 3.6 | 0 | £720.00 |
| 50000 | 3.6 | 0 | £1,800.00 |
| 1000 | 3.6 | 0 | £36.00 |
| 10000 | 4 | 0 | £400.00 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
UK National Savings Calculator FAQ
Answers to common questions about this calculator.
It uses the formula shown with your inputs. Real conditions vary, so treat it as a guide.
Expected prizes = holding x prize rate
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.
Yes. Replace each input with your own figures and the result updates instantly.