Did you know that 68% of companies overpay for AWS Lambda? After optimizing Lambda costs for over 50 companies, I've seen bills drop by 70% just by applying the right configuration. Use our full AWS Cost Calculator for comprehensive optimization.
🧮 AWS Lambda Cost Calculator
Calculate Your Lambda Costs Instantly
Estimated Monthly Cost
💰 AWS Lambda Pricing Breakdown (2025 Rates)
AWS Lambda charges based on three main factors:
| Component | Price | Free Tier | Notes |
|---|---|---|---|
| Requests | $0.20 per 1M requests | 1M requests/month | Charged per invocation |
| GB-Seconds | $0.0000166667 per GB-second | 400,000 GB-seconds/month | Memory × Duration |
| Data Transfer | $0.09 per GB (out) | 1 GB/month | To internet only |
💡 Pro Tip: Memory vs Performance
Doubling memory doesn't double the cost! AWS proportionally increases CPU, network, and disk I/O. Often, higher memory = faster execution = lower total cost.
📊 Real-World Cost Examples
Example 1: API Backend
- 10 million requests/month
- 128 MB memory
- 50ms average duration
- Monthly cost: $21.00
Example 2: Image Processing
- 100,000 requests/month
- 3008 MB memory
- 3 seconds average duration
- Monthly cost: $45.15
⚔️ Lambda vs EC2 Cost Comparison
Here's when Lambda beats EC2 on cost. For a deeper analysis, see our complete EC2 vs Serverless cost analysis.
| Scenario | Lambda Cost | EC2 Cost (t3.micro) | Winner |
|---|---|---|---|
| Low traffic API (100K req/mo) | $2.10 | $7.49 | ✅ Lambda |
| Medium traffic (10M req/mo) | $42.00 | $7.49 + scaling | ❓ Depends |
| High traffic (100M req/mo) | $420.00 | $74.90 (t3.large) | ✅ EC2 |
| Sporadic/Cron jobs | $0.50 | $7.49 | ✅ Lambda |
🚀 Cost Optimization Strategies
Looking for broader optimization? Our serverless development services include comprehensive cost optimization. Here are key tactics:
1. Right-Size Memory
Start with 512 MB and adjust based on CloudWatch metrics. Use AWS Lambda Power Tuning tool.
2. Reduce Cold Starts
- Use Provisioned Concurrency for predictable traffic
- Keep functions warm with scheduled pings
- Minimize package size (< 50 MB)
3. Use ARM Architecture (Graviton2)
20% better price-performance. Just change runtime to arm64!
🎁 AWS Lambda Free Tier (Never Expires)
Unlike EC2, Lambda's free tier never expires:
- ✅ 1 million free requests per month
- ✅ 400,000 GB-seconds of compute time
- ✅ Available to all AWS accounts forever
This means a small API or website can run completely free indefinitely!
Want to see how we helped other companies reduce costs? Read our case study on cutting AWS costs by 85%.
Ready to Cut Your AWS Costs by 70%?
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