When to use this calculator
Estimate constant-rate compute-instance spending. Billing granularity, storage, licensing, network and commitment discounts are excluded.
Explore the storage & compression calculators for other questions in this topic. For a related calculation, use the Cloud Storage Cost Calculator: Estimate simple flat-rate cloud storage charges from average usage.
PUTTING IT INTO PRACTICE
Cloud Compute Cost: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Equivalent instances (integer) | 2 |
| Billed hours per instance | 100 |
| Price per instance-hour | 0.1 |
| Result | 20 currency units |
- Check the input labels and enter the example values above.
- Apply the relationship: Compute cost = instances × billed hours × hourly rate.
- The result is 20 currency units, rounded for display.
How to interpret your result
Billing granularity, storage, licensing, network and commitment discounts are excluded.
Specify decimal or binary units before comparing storage totals. Full-backup retention differs from incremental or deduplicated backup plans. Compression can sometimes increase size when data is already compressed.
Frequently asked questions
Is a 4:1 compression ratio a 400% saving?
No. It means the compressed size is one quarter of the original, corresponding to a 75% size reduction.
When is the cloud compute cost calculator useful?
Estimate constant-rate compute-instance spending. Billing granularity, storage, licensing, network and commitment discounts are excluded.
How do I use the cloud compute cost calculator?
Enter equivalent instances (integer), billed hours per instance, price per instance-hour. The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Compute cost = instances × billed hours × hourly rate.
What should I check before using the result?
Billing granularity, storage, licensing, network and commitment discounts are excluded.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
Calculators Map editorial process · Updated · Methods and limitations