c5.18xlarge.search
c5.18xlarge.search is an AWS OpenSearch size with 72 vCPUs, 144 GiB memory. In US East (N. Virginia) it costs $4.514 per hour on demand ($3,295.22 per month); a 1-year reserved instance with no upfront costs $3.115 per hour, 31% less. It is sold in 31 regions; the cheapest is Asia Pacific (Mumbai) at $4.514 per hour.
Prices by region
USD per hour. Reserved prices are no upfront, standard. Cheapest on-demand first.
| Region | On-demand | 1-yr reserved | 3-yr reserved |
|---|---|---|---|
| Asia Pacific (Mumbai) ap-south-1 | $4.514 | $3.115 | $2.347 |
| Asia Pacific (Hyderabad) ap-south-2 | $4.514 | $3.115 | $2.347 |
| US East (N. Virginia) us-east-1 | $4.514 | $3.115 | $2.347 |
| US East (Ohio) us-east-2 | $4.514 | $3.115 | $2.347 |
| US West (Oregon) us-west-2 | $4.514 | $3.115 | $2.347 |
| EU (Stockholm) eu-north-1 | $4.832 | $3.334 | $2.513 |
| Canada (Central) ca-central-1 | $4.938 | $3.407 | $2.568 |
| Canada West (Calgary) ca-west-1 | $4.938 | $3.407 | $2.568 |
| Asia Pacific (Seoul) ap-northeast-2 | $5.098 | $3.518 | $2.651 |
| Europe (Spain) eu-south-2 | $5.098 | $3.518 | $2.651 |
| EU (Ireland) eu-west-1 | $5.098 | $3.518 | $2.651 |
| EU (Frankfurt) eu-central-1 | $5.151 | $3.554 | $2.679 |
| Asia Pacific (Singapore) ap-southeast-1 | $5.204 | $3.591 | $2.706 |
| Asia Pacific (Jakarta) ap-southeast-3 | $5.204 | $3.591 | $2.706 |
| EU (Milan) eu-south-1 | $5.353 | $3.694 | $2.784 |
| Israel (Tel Aviv) il-central-1 | $5.353 | $3.509 | $2.644 |
| EU (London) eu-west-2 | $5.363 | $3.70 | $2.789 |
| EU (Paris) eu-west-3 | $5.363 | $3.70 | $2.789 |
| AWS GovCloud (US-East) us-gov-east-1 | $5.416 | $3.737 | $2.816 |
| AWS GovCloud (US-West) us-gov-west-1 | $5.416 | $3.737 | $2.816 |
| Middle East (Bahrain) me-south-1 | $5.607 | $3.869 | $2.916 |
| Middle East (UAE) me-central-1 | $5.608 | $3.87 | $2.916 |
| US West (N. California) us-west-1 | $5.629 | $3.884 | $2.927 |
| Europe (Zurich) eu-central-2 | $5.666 | $3.909 | $2.947 |
| Asia Pacific (Tokyo) ap-northeast-1 | $5.682 | $3.921 | $2.955 |
| Asia Pacific (Osaka) ap-northeast-3 | $5.682 | $3.921 | $2.955 |
| Asia Pacific (Hong Kong) ap-east-1 | $5.724 | $3.95 | $2.977 |
| Asia Pacific (Sydney) ap-southeast-2 | $5.894 | $4.067 | $3.065 |
| Asia Pacific (Melbourne) ap-southeast-4 | $5.894 | $4.067 | $3.065 |
| Africa (Cape Town) af-south-1 | $6.067 | $4.186 | $3.155 |
| South America (Sao Paulo) sa-east-1 | $6.956 | $4.80 | $3.617 |
Specs
| Compute | Value |
|---|---|
| vCPUs | 72 |
| Physical cores | 36 |
| Threads per core | 2 |
| CPU maker | Intel |
| Sustained clock | 3.4 GHz |
| Burstable | No |
| ECU | 281 |
| Memory | Value |
|---|---|
| Memory (GiB) | 144 |
| Networking | Value |
|---|---|
| Network baseline | 25 Gbps |
| Network peak | 25 Gbps |
| Storage | Value |
|---|---|
| Storage | EBS Only |
| EBS baseline bandwidth | 19,000 Mbps |
| EBS max bandwidth | 19,000 Mbps |
| EBS baseline throughput | 2,375 MB/s |
| EBS max throughput | 2,375 MB/s |
| EBS baseline IOPS | 80,000 |
| EBS max IOPS | 80,000 |
| Cluster | Value |
|---|---|
| Node roles | Data, Dedicated manager |
| UltraWarm | Yes |
| Instance details | Value |
|---|---|
| Instance type | c5.18xlarge.search |
| Family | c5 |
| Category | Compute optimized |
| Current generation | Yes |
| Other | Value |
|---|---|
| Hardware Basis | c5.18xlarge |
Other c5 sizes
| Size | vCPUs | Memory (GiB) | On-demand /hr |
|---|---|---|---|
| c5.large.search | 2 | 4 | $0.125 |
| c5.xlarge.search | 4 | 8 | $0.251 |
| c5.2xlarge.search | 8 | 16 | $0.502 |
| c5.4xlarge.search | 16 | 32 | $1.003 |
| c5.9xlarge.search | 36 | 72 | $2.257 |
| c5.18xlarge.search | 72 | 144 | $4.514 |
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS OpenSearch sizes.