Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- All rates are user-supplied. No free tiers, reserved-instance discounts, taxes or provider-specific billing rounding.
Example Calculation
- Instances: 2
- Hours per instance: 730 h
- Instance hourly price: 0.05 currency/h
- Storage: 100 GB
- Storage unit price: 0.1 currency/GB
- Billable egress: 50 GB
- Egress unit price: 0.08 currency/GB
Two instances for 730 hours at 0.05/h, plus the entered storage and egress, total 87.
Frequently asked questions
How do I use this calculator?
Enter instances, hours per instance, instance hourly price, storage, storage unit price, billable egress, egress unit price. The result updates automatically. Use Reset to restore the example values.
What method does it use?
total=instances × hours × hourly price + storage × unit price + egress × unit price.. All rates are user-supplied. No free tiers, reserved-instance discounts, taxes or provider-specific billing rounding.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.