How much can EC2 Spot save vs on-demand?

Spot discounts range from 60% (popular instance types) to 90% (oversized or older instances). A p3.8xlarge (4x V100) on-demand at $12.24/hr can run for ~$1.80-3.00/hr on Spot.

What workloads are suitable for Spot?

Spot is ideal for: ML training (checkpointing), batch processing, CI/CD builds, rendering, and stateless web tiers. Avoid Spot for: databases, stateful apps, and latency-sensitive production services.

How do I protect against Spot interruptions?

Use Spot Interruption Notices (2-minute warning), implement checkpointing for training jobs, mix On-Demand and Spot in ASGs, and use Spot Fleet with multiple instance type diversification.

AWS EC2 Spot Instance Savings Calculator

Calculate AWS EC2 Spot Instance savings vs on-demand. Spot instances offer 60-90% discounts with 2-minute interruption notice. Model interruption risk.

AI & SaaS Tools

SaaS Metrics

AI Compute

AI ROI

LTV:CAC Ratio

ARPU ($/month)

Monthly Churn %

CAC ($)

Gross Margin %

LTV

$3500

LTV:CAC

11.67

Payback

2.9 mo

Health

Healthy ✓

Benchmark: LTV:CAC ≥ 3 is healthy. Payback under 12 months is excellent. Under 1 means you lose money on each customer.

How to Use

Enter the values for the scenario you are assessing. Calculate AWS EC2 Spot Instance savings vs on-demand. Spot instances offer 60-90% discounts with 2-minute interruption notice. Model interruption risk. Use the ec2 spot savings result to inform your calculation.

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Frequently Asked Questions

How much can EC2 Spot save vs on-demand?

What workloads are suitable for Spot?

How do I protect against Spot interruptions?