Amazon Neptune pricing calculator
Analytics, Instances & Serverless. Estimate your costs using AWS list prices.
Estimates from AWS list prices, not an AWS quote. Discounts, taxes and credit terms may affect your bill.
01 · How Amazon Neptune pricing works
What you pay for
- Neptune Database: instance hours or Serverless NCU-hours ($0.1608 per NCU-hour), storage per GB-month, I/O per million on Standard (I/O-Optimized available).
- Neptune Analytics: per memory-optimized NCU-hour by graph size (16 m-NCU = $0.48/hour); paused graphs bill a lower rate.
- Backup storage, snapshot export, data transfer, Neptune ML (SageMaker charges).
Common cost traps
- Serverless minimum NCUs bill every hour while the cluster exists.
- Graph traversals that touch many vertices drive I/O costs on Standard storage.
- Neptune Analytics graphs bill per hour while active, and still bill at a reduced rate while paused.
- Neptune ML training and inference are billed as SageMaker usage.
Ways to reduce cost
- Use I/O-Optimized if I/O dominates.
- Delete or pause Analytics graphs when not in use; snapshot and restore for periodic analysis.
- Use Graviton instances and right-size from CPU/memory metrics.
Free Tier & account eligibility
Free Tier depends on account age. Accounts created on or after 15 July 2025 get a $100 sign-up credit plus up to $100 more for completing onboarding activities; on the Free plan these last 6 months (or until used up), on the Paid plan unused Free Tier credits stay usable for 12 months from sign-up. Accounts created before 15 July 2025 keep the legacy Free Tier (12-month offers plus always-free offers). Always-free offers apply on both plans. Neptune has offered a 30-day free trial for new Neptune customers (750 hours of t3/t4g.medium, 10 M I/O, 1 GB storage and backup). Check eligibility for new-plan accounts. Otherwise paid from Free Tier credits.
02 · AWS credits & runway
Do credits cover Amazon Neptune?
Neptune Database instance hours, Serverless NCU-hours, storage, I/O, backups and Neptune Analytics memory-optimized capacity are eligible usage and are offset by credits. General rules: credits only offset charges from the billing cycle in which they were applied onward (never past bills), they apply only to the services listed on the credit in Billing and Cost Management > Credits, they expire on the date shown there, and accounts on the AWS Free plan cannot receive Activate credits until they upgrade to the Paid plan.
Check my creditsExcluded charges & conditions
- Upfront payments for Savings Plans and Reserved Instances (All Upfront, and the upfront part of Partial Upfront). The recurring hourly fee of a No Upfront commitment is billed as normal usage and can be offset.
- AWS Marketplace charges (Activate credits make an exception for third-party foundation models used through Amazon Bedrock).
- AWS Enterprise Support, Enterprise On-Ramp, Unified Operations, resold support and partner-led support.
- Amazon Route 53 domain name registration and transfer fees.
- Taxes (sales, use, VAT and similar), AWS Professional Services, Training and Certification, Mechanical Turk, AWS Managed Services, and any use for cryptocurrency mining.
Illustrative credit runway
Single-service examples from the supplied data, not your calculator result. Months = credit amount ÷ monthly cost, before credit expiry. Credits can expire before these theoretical months are used; coverage and other AWS services can shorten runway.
| Usage profile | Monthly estimate | $10,000 | $25,000 | $100,000 |
|---|---|---|---|---|
| Small | $72.89 | 137.2 mo. | 343.0 mo. | 1,371.9 mo. |
| Medium | $522.96 | 19.1 mo. | 47.8 mo. | 191.2 mo. |
| Large | $7,261.89 | 1.4 mo. | 3.4 mo. | 13.8 mo. |
Small profile assumptions
1 x db.t4g.medium, 10 GB storage, 20 M I/O | db.t4g.medium: 730 hours x $0.093 = $67.89; Storage: 10 GB-month x $0.1 = $1.00; I/O: 20 million x $0.2 = $4.00 | Total ~$72.89/month, us-east-1 on-demand list prices, before Free Tier, taxes and support.
Medium profile assumptions
2 x db.r7g.large (writer + reader), 200 GB, 500 M I/O | db.r7g.large: 1,460 hours x $0.276 = $402.96; Storage: 200 GB-month x $0.1 = $20.00; I/O: 500 million x $0.2 = $100.00 | Total ~$522.96/month, us-east-1 on-demand list prices, before Free Tier, taxes and support.
Large profile assumptions
Neptune Serverless averaging 32 NCUs, 1 TB, 3 B I/O, plus a 128 m-NCU Neptune Analytics graph 24/7 | Serverless NCUs: 23,360 NCU-hours x $0.1608 = $3,756.29; Storage: 1,024 GB-month x $0.1 = $102.40; I/O: 3,000 million x $0.2 = $600.00; Neptune Analytics 128 m-NCU: 730 hours x $3.84 = $2,803.20 | Total ~$7,261.89/month, us-east-1 on-demand list prices, before Free Tier, taxes and support.
04 · Questions
Amazon Neptune pricing FAQ
Database or Analytics?
Neptune Database is for transactional graph workloads; Neptune Analytics is an in-memory engine for fast analysis of large graphs. They are billed separately.
Is there a free tier?
A 30-day free trial for new Neptune customers, not an ongoing Free Tier.
Does Serverless scale to zero?
No. It scales between the minimum and maximum NCUs you set; the minimum bills while the cluster runs.
Do credits cover Neptune ML?
Neptune ML runs on SageMaker, so it is covered when SageMaker is covered by your credits.
05 · Sources & estimate notes
Content pack dated 2026-10-19. Calculator rates remain their existing snapshots; this content update is not a price refresh.
Verification notes
- In the snapshot, db.r6g.large ($0.3287/h) is priced above db.r7g.large ($0.276/h); confirm instance prices on the pricing page.
- Neptune free trial terms not confirmed for new-plan accounts.
- Runway prices come from the calculator repository snapshot rate card neptune (no AWS Price List mapping in the build). Confirm the main unit prices on https://aws.amazon.com/neptune/pricing/ before publishing.