Amazon CloudWatch Pricing

¥ 2.0000 per metric per month for the first 10,000 metrics

¥ 0.6673 per metric per month for the next 240,000 metrics

¥ 0.3337 per metric per month for the next 750,000 metrics

¥ 0.1335 per metric per month for metrics over 1,000,000

¥ 14.0000 down to ¥ 0.9345 per instance per month at 1-minute frequency***

*** Detailed Monitoring is priced as 7 custom metrics per EC2 instance, prorated by the hour and metered only when the instance sends metrics to CloudWatch.

¥ 0.622 per standard-resolution (60 seconds) alarm metric per month

¥ 2.036 per high-resolution (10 seconds) alarm metric per month

¥ 1.866 per standard-resolution anomaly-detection alarm per month

¥ 6.108 per high-resolution anomaly-detection alarm per month

¥ 0.0622 per 1,000 GetMetricStatistics, PutMetricData or ListMetrics API requests

¥ 0.0651 per 1,000 metrics requested using GetMetricData API*

*The price for requesting one metric using GetMetricData API is ¥ 0.0000651 and you can request up to five statistics for the same metric in a single GetMetricData API without additional charges.

                ¥ 6.228 per GB ingested*

                ¥ 0.244 per GB archived per month

Data Transfer OUT from CloudWatch Logs is priced equivalent to the “Data Transfer OUT from Amazon EC2 To” and “Data Transfer OUT from Amazon EC2 to Internet” tables on the EC2 Pricing Page.

* There is no Data Transfer IN charge for any of CloudWatch.

                ¥ 6.228 per GB log data ingested for the first 10TB 

                ¥ 3.114 per GB log data ingested for the next 20TB

                ¥ 1.2456 per GB log data ingested for the next 20TB

                ¥ 0.6228 per GB log data ingested over 50TB

Vended logs are logs that are natively published by AWS services on behalf of the customer. VPC Flow logs is the first Vended log type that will benefit from this tiered model. However, more AWS Service log types will be added to Vended Log type in the future. 

                ¥ 6.92 per GB ingested*

                ¥ 0.244 per GB archived per month

Data Transfer OUT from CloudWatch Logs is priced equivalent to the “Data Transfer OUT from Amazon EC2 To” and “Data Transfer OUT from Amazon EC2 to Internet” tables on the EC2 Pricing Page.

* There is no Data Transfer IN charge for any of CloudWatch.

                ¥ 6.92 per GB log data ingested for the first 10TB 

                ¥ 3.46 per GB log data ingested for the next 20TB

                ¥ 1.38 per GB log data ingested for the next 20TB

                ¥ 0.69 per GB log data ingested over 50TB

Vended logs are logs that are natively published by AWS services on behalf of the customer. VPC Flow logs is the first Vended log type that will benefit from this tiered model. However, more AWS Service log types will be added to Vended Log type in the future.  

                ¥ 0.06296 per GB of data scanned

                ¥ 0.06228 per GB of data scanned

¥ 6.75 per million custom events generated

We provide 3 free Dashboards in China (Beijing) and China (Ningxia) Regions for up to 50 metrics per month.

After that, it will be charged ¥ 20.36 per Dashboard per month.

            ¥0.0178 per canary run

            ¥0.0156 per canary run

Additional charges
For each canary run, you may incur additional charges for other AWS services utilized such as AWS Lambda, Amazon S3, and CloudWatch Logs. For details on AWS service pricing, see the pricing section of the relevant AWS service detail pages.

¥ 3.46 per GB log data ingested for the first 10TB

¥ 2.07 per GB log data ingested for the next 20TB

¥ 1.11 per GB log data ingested for the next 20TB

¥ 0.69 per GB log data ingested over 50TB

¥ 3.11 per GB log data ingested for the first 10TB

¥ 1.87 per GB log data ingested for the next 20TB

¥ 0.99 per GB log data ingested for the next 20TB

¥ 0.62 per GB log data ingested over 50TB

        ¥ 3.52 per rule per month
        ¥ 0.27 per one million log events that match the rule per month

        ¥ 3.52 per rule per month
        ¥ 0.28 per one million events that match the rule per month 

Example 11 - Alarming with composite alarms

Composite alarms can combine any type of CloudWatch alarm. Metric alarms are billed based on the number of metrics per alarm, while composite alarms are billed per alarm unit. One composite alarm costs ￥3.480 per month, regardless of the number of metric alarms it combines.

If you create one composite alarm that combines four standard resolution metric alarms, your monthly bill is calculated as follows:

Four standard resolution alarms = ￥0.622 per alarm metric * 4 = ￥2.488 per month

One composite alarm = ￥3.480 per month

Monthly CloudWatch charges = ￥2.488 + ￥3.480 = ￥5.968 per month
 

If you monitor 1 Lambda function that is invoked 1M times per month, your costs would be as follows:

CloudWatch metrics
There is a predefined number of metrics reported for every function. Every function reports 8 metrics. CloudWatch metrics are aggregated by function using their name. All CloudWatch metrics are prorated on an hourly basis. If your function is invoked less than once per hour, your function will only be billed for the hours that it is invoked.

There are no minimum fees or mandatory service usage. If the function is not invoked, you do not pay.

Monthly number of CloudWatch metrics per function
= 8 metrics * 1 function
= 8 CloudWatch metrics

Monthly CloudWatch metrics costs = ¥ 2.0000 per metric for first 10,000 metrics * 8 metrics = ¥ 16.0000

Once you exceed 10,000 total metrics in your account then volume pricing tiers will apply. See metrics pricing for details.

CloudWatch Logs
A single log event is generated for each function invoke. The size of each log event is approximately 1.1 KB.

Monthly GB of CloudWatch Logs ingested = (1.1 KB/1024/1024) GB * 1,000,000 invokes per month = 1.05 GB per month 

Monthly ingested logs costs = ¥ 6.2280 per GB of ingested logs * 1.05 GB of performance events as CloudWatch Logs = ¥ 6.5390 per month

Monthly CloudWatch costs = ¥ 16.0000 + ¥ 6.5390 = ¥ 22.5394 per month.

Monthly ingested logs costs = ¥ 6.92 per GB of ingested logs * 1.05 GB of performance events as CloudWatch Logs = ¥ 7.2660 per month

Monthly CloudWatch costs = ¥ 16.0000 + ¥ 7.2660 = ¥ 23.2660 per month.