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Next.js VPS Sizing Calculator

Turn measured peak traffic, dynamic-request share, CPU time, image work, and availability needs into a conservative VPS starting tier.

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By HostNextJS Editorial TeamReviewed by HostNextJS Technical Review Published Updated
01Typetool
02Last reviewed
03Update policyReview the model every 90 days and after material Next.js runtime guidance changes.
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Next.js VPS Sizing Calculator

Measured workload
Starting recommendation1 × 1 vCPU / 2 GB
Peak dynamic load
0 req/s
Modeled CPU floor
1 cores
Modeled memory floor
2 GB

Assumptions: Inputs come from a production-like load test, not monthly pageviews converted into requests. The model keeps average CPU utilization near 60% to leave limited burst and operating headroom.

Privacy: Workload inputs are calculated locally and appear in the URL only when you change them.

Benchmark the exact production artifact, proxy, cache, database path, and image workload. Scale up or out based on latency, CPU, memory, errors, and saturation under representative load.

Use measurements from a production-mode build. Requests per second alone are not enough: the share that invokes dynamic rendering and the CPU time consumed by those requests determine the modeled compute floor.

Sizing formula

Dynamic requests per second are peak requests multiplied by the dynamic percentage. The CPU floor divides dynamic CPU demand by a 60% utilization target. The result is rounded upward into a common CPU and memory tier.

Measure before entering values

Run next build and the production server on a representative machine. Exercise static assets, cached pages, dynamic routes, Server Actions, image transformations, and slow dependencies. Record process CPU time and memory rather than browser response time alone.

Validate the recommendation

Load test the suggested tier while observing p95 latency, errors, event-loop delay, CPU, resident memory, swap, disk, and dependency pools. Test deployments and instance loss. A safe choice has measured headroom and a documented scaling threshold.

Methodology

How this resource was produced

The CPU floor is peak requests per second multiplied by the dynamic share and measured CPU milliseconds, divided by 1,000 and a 60% target utilization. Memory starts at 1 GB, adds 0.75 GB per modeled core, and adds a simple image-work allowance before rounding into common VPS tiers.

Limitations
  • 01

    A formula cannot model dependency latency, memory leaks, build memory, traffic bursts, native modules, cache hit rate, or noisy-neighbor behavior.

  • 02

    The recommendation is a starting tier for load testing, not a production capacity guarantee.

Evidence

Sources and review record

Primary documentation checked for the material claims on this page. Product behavior and prices can change after the checked date.

  1. 01 · Next.jsHow to self-host your Next.js applicationChecked July 12, 2026
  2. 02 · Next.jsProduction checklistChecked July 12, 2026
Keep exploring

Related resources

01Can Next.js run on a VPS?02Hosting cost calculator03Production readiness checklist
FAQ

Questions about next.js vps sizing calculator.

No fog. Just the practical details developers need before moving a production app.

Is 2 GB RAM always enough for Next.js?

No. It is only this tool's conservative minimum tier. Builds, image optimization, dependencies, traffic, and co-located services can require substantially more memory.

Why does high availability recommend two instances?

One instance is a single failure and maintenance domain. Two instances are only a starting point and still require a load balancer, coordinated state, health checks, and failure testing.

Next step

Turn the resource into a deployment decision.

Review a capacity plan