Cloud Cost Calculator
Add up compute, storage, and data-transfer charges to estimate what your cloud deployment costs per month and per year.
Reviewed by the CalcCafe editorial team · Last updated 1 July 2026 · How we test our tools
Example
Three instances at $0.096/hr running 730 hours each cost 3 × 0.096 × 730 = $210.24 in compute. Add 500 GB of storage at $0.10/GB ($50.00) and 200 GB of egress at $0.09/GB ($18.00), and the total is $278.24 per month, or about $3,338.88 per year.
How it works
Monthly cost = (instances × hourly rate × hours per month) + (storage GB × storage price) + (egress GB × egress price). The three parts are the compute, storage, and data-transfer charges; annual cost = monthly × 12.
Good to know
Cloud bills are really just three moving parts stacked together: the machines you run, the data you keep, and the data you send out. This calculator makes each part explicit so you can see where the money actually goes before you provision anything. The compute line multiplies how many instances you run by their hourly rate and the hours they stay on — 730 is the average hours in a month, so it represents an instance left running around the clock.
Storage and egress are the parts that quietly surprise people. Storage is usually cheap per gigabyte but accumulates because data rarely gets deleted, while egress — data leaving the provider's network to your users or another region — is often billed at a rate that dwarfs what you pay to store the same bytes. Plugging in realistic transfer volumes here is a good way to catch a bill shock early, especially for media-heavy or multi-region apps.
The numbers use on-demand, list-price assumptions, which is the most expensive way to buy cloud. Reserved instances, savings plans, committed-use discounts, and spot capacity can cut compute by a large margin, and most providers include a free tier and free inbound transfer. Taxes, support plans, load balancers, managed databases, and per-request API charges are not modeled, so treat the result as a floor for a simple deployment rather than a full invoice.
Use it to compare scenarios: bump the instance count to size a launch, raise egress to model a traffic spike, or lower the hours to price a workload that only runs part of the day. It is an estimate to guide planning, not a quote or billing advice — confirm current rates in your provider's pricing pages and cost calculator.
Frequently asked questions
Why is data egress so expensive on cloud providers?
Most providers charge little or nothing to move data in but bill outbound transfer (egress) per gigabyte, and those rates add up fast for media, backups, or cross-region traffic. Modeling egress separately, as this tool does, helps you spot it before it dominates the bill.
What does 730 hours per month mean?
730 is the average number of hours in a month (8,760 hours a year ÷ 12). It represents an instance running continuously all month, which is why providers use it as the baseline for on-demand pricing.
Is my data uploaded anywhere?
No — this calculator runs entirely in your browser. Your inputs never leave your device, and it works offline once loaded.
Is this calculator free?
Yes, completely free with no sign-up and no limits.
People also ask
How do I estimate my monthly cloud bill?
Add up three costs: compute (instances × hourly rate × hours run), storage (GB × price per GB), and egress (GB transferred out × price per GB). This calculator totals them instantly and projects the annual figure.
How can I reduce cloud computing costs?
Use reserved instances or savings plans for steady workloads, spot instances for interruptible jobs, right-size or auto-scale instances, delete unused storage, and cut egress with caching and a CDN. On-demand list pricing, shown here, is the most expensive baseline.
Does this include reserved or spot pricing?
No — it assumes on-demand list prices. Reserved, committed-use, and spot discounts can lower compute significantly, so enter a discounted hourly rate if you want to model them.
How much does 1TB of cloud storage cost?
Storage is billed per gigabyte per month, so 1 TB is 1,000 GB times the provider's rate; at the $0.10/GB used in the example above that is 1,000 × 0.10 = $100 per month, or $1,200 per year. Actual rates vary widely by provider, storage class, and region, and archival tiers cost far less than hot storage. Enter the current list price into the calculator to get a real figure.
What is the cheapest cloud service provider?
There is no single cheapest provider because compute, storage, and egress are priced separately and the ranking changes with your mix. A provider with cheap storage may charge more for egress, which is usually the line that surprises people. The reliable way to compare is to plug each provider's current list prices into this calculator with your own instance count, gigabytes stored, and gigabytes transferred out.
How much does 100 TB of cloud storage cost?
100 TB is 100,000 GB, so at the example rate of $0.10/GB the storage line is 100,000 × 0.10 = $10,000 per month, or $120,000 per year. At that scale most providers apply tiered discounts and cold or archive classes are much cheaper, so the real number depends on how often you access the data. Egress on 100 TB can also exceed the storage cost if you read it back out frequently.
How much does 20 TB of cloud storage cost?
20 TB is 20,000 GB, so at the example rate of $0.10/GB it is 20,000 × 0.10 = $2,000 per month, or $24,000 per year. Cheaper storage classes and archive tiers can cut that substantially for data you rarely read. Add your expected egress in the calculator, since downloading even a fraction of 20 TB each month adds a separate charge.
How do I get 1TB cloud storage for free?
Cloud providers' free tiers are usually a few gigabytes with time limits and caps on egress, so a full terabyte of free infrastructure storage is not typically available. Consumer subscriptions bundled with phones or office suites sometimes include 1 TB, but that is personal file sync rather than storage you can attach to servers. Check each provider's current free-tier page, then use this calculator to estimate the cost once you exceed it.
How much does 5TB cloud storage cost?
5 TB is 5,000 GB, so at the example rate of $0.10/GB the storage charge is 5,000 × 0.10 = $500 per month, or $6,000 per year. Real prices vary by provider, region, and storage class, and archive tiers can be a fraction of that. Remember to add egress and any compute you attach to the data, since storage alone is rarely the full bill.
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Sources & references
These tools follow our methodology and provide educational estimates only — verify important figures with a qualified professional.