Cloud Storage Cost Calculator
Monthly and annual cost of cloud storage by tier.
Calculate total cloud storage cost per month and year across storage, egress, and API usage. Enter storage gb to see total monthly and annual cost.
What this tool does
Cloud storage bills combine two main cost layers: the storage itself and egress charges when data is read back out. This calculator takes your monthly storage volume in GB, the per-GB storage rate, your expected monthly data transfer out in GB, and the per-GB egress rate, then computes your total monthly and annual spend. The result shows how storage and egress costs stack together across a full year. Storage volume and egress rates are typically the largest cost drivers for most workloads. A common scenario is estimating costs when moving application backups or user files to cloud infrastructure. Note that this calculation excludes API operation charges, which remain negligible for typical usage but can accumulate at higher transaction scales. The output is for cost modelling purposes and reflects the inputs you provide.
Quick answer: with the default values, the result is $28.00 (Monthly Total). Adjust the values below for your own figures.
Enter Values
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Formula Used
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Cloud storage has three cost levers: storage, egress, and operations. Storing 1TB at 0.02/GB is 20/month. Downloading that 1TB out at 0.08/GB is 80 — one egress event. For backup workloads egress rarely hits; for active workloads it can dominate the bill. Modelling both sides prevents surprises.
Run it with sensible defaults
Using storage of 1,000, storage rate per gb of 0.02, monthly egress of 100, egress rate per gb of 0.08, the calculation works out to 28.00. The defaults are meant as a starting point, not a recommendation.
The levers in this calculation
The inputs — Storage (GB), Storage Rate per GB, Monthly Egress (GB), and Egress Rate per GB — do not pull with equal force.
How the math works
Storage × rate + egress × rate. Ignores operations charges (API calls) which are small for most workloads but can matter at scale.
Why run the calculation
Utility bills creep. Small annual increases stack into meaningful differences over a decade. Running this once a year and switching providers when the gap widens is one of the easiest ways to keep household costs in check.
Worked example
A media production company stores 5,000 GB of raw footage and project files at a rate of 0.015 per GB per month. Each month they transfer 800 GB of finished media to clients at 0.10 per GB.
- Storage cost: 5,000 × 0.015 = 75 per month
- Egress cost: 800 × 0.10 = 80 per month
- Monthly total: 155
- Annual total: 1,860
If the company reduces monthly egress to 200 GB by archiving completed projects, the monthly bill drops to 105 and the annual bill to 1,260. The same storage volume paired with lower egress activity produces markedly different costs.
When this metric matters
The calculator applies across several common situations:
- Comparing cost between storage providers before migrating data
- Forecasting annual spend when onboarding a new workload
- Understanding why bills spike in months with higher data retrieval activity
- Modelling the impact of changing storage volume or download frequency
For educational illustration only
This calculation estimates recurring storage and egress charges based on stated rates and volumes. The output is illustrative and does not account for volume discounts, rate changes, free tier allowances, or one-time setup fees. Use it to compare relative costs between scenarios, not as a binding forecast of actual charges.
At £0.02 per GB for 1,000 GB of storage plus £0.08 per GB egress, your monthly cost is $28.00.
Inputs
| Annual | $336.00 |
|---|---|
| Storage Portion | $20.00 |
| Egress Portion | $8.00 |
| Egress as % of Bill | 28.57% |
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
This calculator computes monthly cloud storage cost by applying per-gigabyte rates to two components: stored data and data transfer out (egress). The monthly cost is calculated as (storage in GB multiplied by the storage rate per GB) plus (monthly egress in GB multiplied by the egress rate per GB). The model assumes rates remain constant across the billing period and applies them linearly without tiered discounts or volume adjustments. It does not model operations charges such as API call fees, which typically represent a minor cost for standard workloads but can accumulate significantly under high-transaction scenarios. Regional pricing differences, data redundancy costs, and service-specific add-ons are also excluded from this calculation.
Frequently Asked Questions
Why does egress cost so much?
What about object storage tiers?
Do free tiers help?
Is self-hosting cheaper?
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