How does Fly.io pricing work?

Fly.io bills per second for actual machine uptime. Shared CPU-1x (256MB): $1.94/month if always on. Dedicated CPU-1x (2GB): $8.29/month. Free tier: 3 shared VMs, 3GB storage, 160GB egress.

Can Fly.io machines scale to zero?

Yes — Fly.io machines can be stopped when idle (e.g., between requests) and restarted in <1 second. This enables near-zero costs for low-traffic apps with sporadic request patterns.

Is Fly.io good for global deployment?

Fly.io excels at multi-region deployment with Anycast networking. You can run app instances in 30+ regions with traffic routed to the nearest instance — unique among budget PaaS providers.

Fly.io Machine Cost Calculator

Calculate Fly.io machine costs for containerized apps. Billed per second: shared CPU $0.0000022/sec, dedicated CPU $0.0000226/sec/vCPU. Scale to zero when idle.

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 Fly.io machine costs for containerized apps. Billed per second: shared CPU $0.0000022/sec, dedicated CPU $0.0000226/sec/vCPU. Scale to zero when idle. Use the fly.io cost result to inform your calculation.

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Fly.io Machine Cost Calculator

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Frequently Asked Questions

How does Fly.io pricing work?

Can Fly.io machines scale to zero?

Is Fly.io good for global deployment?