Kubernetes Resource Calculator

Size CPU and memory requests and export Deployment + HPA YAML

Application

App name

Namespace

Replicas

Workload type

Resources

CPU request

CPU limit

Memory request

Memory limit

HPA

Enable HorizontalPodAutoscaler

Max replicas

Target CPU %

Recommendations

2 replica(s) with 250m CPU / 256Mi memory requests

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
  namespace: default
  labels:
    app: my-app
spec:
  replicas: 2
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
        - name: my-app
          image: my-app:latest
          resources:
            requests:
              cpu: 250m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 512Mi
---
apiVersion: v1
kind: Service
metadata:
  name: my-app
  namespace: default
spec:
  selector:
    app: my-app
  ports:
    - port: 80
      targetPort: 8080
  type: ClusterIP
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: my-app-hpa
  namespace: default
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: my-app
  minReplicas: 2
  maxReplicas: 6
  metrics:
    - type: Resource
      resource:
        name: cpu
        target:
          type: Utilization
          averageUtilization: 70

About this tool

Size CPU and memory requests before you apply manifests. Enter replicas, limits, workload type and optional HPA targets — get recommendations plus Deployment, Service and HPA YAML.

How to use

Configure workload
Set app name, namespace, replicas and workload type (web/worker/batch).
Set resources
Enter CPU and memory requests/limits.
Copy YAML
Download or copy the generated manifest.

Frequently asked questions

Cloud Diagrams, K8s Sizing and Security Tools — H2 Batch Guide

AWS/Azure/GCP architecture diagrams, ER from DDL, Kubernetes resource calculator, AWS pricing estimates, TLS handshake tutorial, webhook tester and DevTools symmetric encryption.