Prices · Amazon RDS
Amazon RDS Reserved Instance pricing.
Reserver prices 29 reserved db instance types for Amazon RDS. The figures come from the AWS Price List API, as of Aug 20, 2026.
Every priced instance type
The full matrix, Amazon RDS.
Sorted by 3-year reserved discount, deepest first. Each row links to that instance type's own price page, with every term and payment option AWS sells.
| Instance type | On-demand | Best 1yr | Best 3yr | Pricing page |
|---|---|---|---|---|
| db.r6g.large | $0.225/hr | 46% | 64% | → |
| db.r6g.xlarge | $0.450/hr | 46% | 64% | → |
| db.r5.large | $0.250/hr | 46% | 64% | → |
| db.r6i.large | $0.250/hr | 46% | 64% | → |
| db.r6i.xlarge | $0.500/hr | 46% | 64% | → |
| db.r6i.2xlarge | $1.000/hr | 46% | 64% | → |
| db.r5.2xlarge | $1.000/hr | 46% | 64% | → |
| db.r5.xlarge | $0.500/hr | 46% | 64% | → |
| db.r6g.4xlarge | $1.798/hr | 46% | 64% | → |
| db.r6g.2xlarge | $0.899/hr | 46% | 64% | → |
| db.m5.xlarge | $0.356/hr | 40% | 60% | → |
| db.m5.2xlarge | $0.712/hr | 40% | 60% | → |
| db.m6g.large | $0.159/hr | 40% | 60% | → |
| db.m6g.2xlarge | $0.636/hr | 40% | 60% | → |
| db.m5.large | $0.178/hr | 40% | 60% | → |
| db.m6i.large | $0.178/hr | 40% | 60% | → |
| db.m6i.xlarge | $0.356/hr | 40% | 60% | → |
| db.m6g.xlarge | $0.318/hr | 40% | 60% | → |
| db.t4g.medium | $0.065/hr | 33% | 53% | → |
| db.t3.large | $0.145/hr | 33% | 53% | → |
| db.t4g.large | $0.129/hr | 33% | 53% | → |
| db.t3.medium | $0.072/hr | 33% | 53% | → |
| db.r7g.4xlarge | $1.913/hr | 27% | 47% | → |
| db.m7g.xlarge | $0.337/hr | 27% | 47% | → |
| db.m7g.2xlarge | $0.674/hr | 27% | 47% | → |
| db.r7g.2xlarge | $0.956/hr | 27% | 47% | → |
| db.r7g.large | $0.239/hr | 27% | 47% | → |
| db.r7g.xlarge | $0.478/hr | 27% | 47% | → |
| db.m7g.large | $0.168/hr | 27% | 47% | → |
Prices: AWS Price List API, us-east-1, standard RIs, PostgreSQL · Single-AZ, as of Aug 20, 2026. Each instance type's own page switches region and engine. Verify in the AWS console before you buy.
What a lapse costs
Miss the renewal on Amazon RDS, pay the difference.
AWS Reserved Instances never renew on their own. When the term ends, the instance reverts to the on-demand rate. Reserver's expiry radar tracks every reservation's end date and flags a term before it lapses.
Check your real renewal dates →See if you're already under-reserved →
Same fee, any fleet size
It costs the same at 8 reservations or 800.
The fee to catch a lapsed Amazon RDS reservation stays the same. It does not matter if one team owns it or an entire organization does. The table below scales the median saving above across three fleet sizes.
| Reservations | Per hour | Per day | Per week | 30-day lapse | Fits |
|---|---|---|---|---|---|
| 8 | $2.53 | $61 | $426 | $1,825 | Fits startups → |
| 80 | $25.34 | $608 | $4,257 | $18,246 | Fits growth teams → |
| 800 | $253.42 | $6,082 | $42,574 | $182,460 | Fits enterprise → |
Reserver's plans stay flat at any fleet size. See the flat price on the pricing page →
Questions
Amazon RDS Reserved Instance questions.
Do Amazon RDS Reserved Instances renew automatically?
No. AWS Reserved Instances never renew on their own. When the term ends, Amazon RDS usage reverts to the on-demand rate shown above. Reserver's expiry radar flags the end date before that happens, so nobody has to remember to look.
Should we buy a 1-year or a 3-year Amazon RDS Reserved Instance?
Across this catalog, the median 3-year discount on Amazon RDS runs about 56% off on-demand, against 36% at 1 year. The deeper discount pays off once an instance has more runway left than its break-even point. Check the price table above for the exact figure at your instance type.
What engine or class does the Amazon RDS price table above use?
Every row above prices PostgreSQL · Single-AZ, the standard Reserved Instance class, in us-east-1. Open any instance type's own page to switch region or engine. That page carries the full matrix.
How much size flexibility does Amazon RDS give us?
A reservation flexes across sizes inside the same class type, measured in normalized units. The benefit also moves between Single-AZ and Multi-AZ. AWS excludes some engines from size flexibility. RDS sells no convertible option, so the engine you buy is the engine you keep. The size flexibility calculator lists the exact rules per engine.
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