EC2 Calculator costs
Resource Details
Machine Type
Region
Instance Usage (in days)
Quantity
Estimation
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Get started for freeHOW TO USE THIS CALCULATOR
Estimate your AWS bill in three steps
Configure your instances
Select a machine type (e.g. m5.large) and AWS region for each workload. Pricing varies by region — us-east-1 is typically the cheapest baseline.
Set usage and quantity
Enter how many days per month each instance runs and how many instances you need. A 24/7 workload is 30 days; dev environments often run 22 or fewer.
Compare and decide
Add as many configurations as you like — the estimate totals everything instantly and updates live as you switch pricing plans, regions, or currency.
CHOOSE A CALCULATOR
Which AWS service are you pricing?
EC2
Virtual machines billed per instance-hour. Size instances, compare families and regions, and weigh On-Demand against Reserved and Spot.
Open the EC2 calculator →S3
Object storage billed on capacity, requests, and retrieval. Compare storage classes and model the access pattern before you commit to one.
Open the S3 calculator →Savings Plans
Commitment pricing for compute. Work out how much hourly commitment your baseline usage justifies across one and three year terms.
Open the Savings Plans calculator →PRICING MODEL
How AWS pricing works
AWS bills by consumption, but the unit of consumption differs sharply between services. EC2 charges per instance-hour, S3 charges per GB stored plus every request and retrieval against it, and Savings Plans charge a committed hourly rate that offsets compute usage elsewhere. Because the units differ, a single monthly figure is only meaningful once each service has been estimated on its own terms and then added together.
Three factors cut across everything. Region sets the base rate, and the cheapest region for compute is not always cheapest for storage or transfer. Commitment is the largest available discount, offered through Savings Plans and Reserved Instances in exchange for one or three years of predictability. Data transfer sits outside both: moving data into AWS is free, moving it between regions or out to the internet is not, and egress is the line item that most often surprises teams after launch.
What drives your AWS bill
Service mix
Most bills are dominated by two or three services rather than spread evenly. Estimating the largest contributors carefully matters far more than pricing every small component precisely.
Region
Rates differ by location for compute, storage, and transfer alike. us-east-1 is usually the cheapest baseline, while South America and parts of Asia-Pacific carry a clear premium.
Commitment
Savings Plans and Reserved Instances offer the deepest discounts available in exchange for one or three years of committed usage. On-Demand buys flexibility at the highest rate.
Storage class and retention
Storage is billed on what is provisioned or retained, not what is read. EBS bills while instances are stopped, and S3 classes apply minimum durations that penalise early deletion.
Data transfer
Inbound transfer is free. Cross-region and internet egress is billed per GB and is routinely underestimated, particularly for public-facing content and cross-region replication.
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