Cloud Composer 3 pricing is based on DCU (data compute unit), https://cloud.google.com/composer/pricing#composer-3 but I couldn’t find anywhere concrete explanation of what it represents (besides a vague explanation “Data Compute Unit is an abstract metering unit that represents computational resources allocated by a Cloud Composer environment at a point in time.”)

For example, what is the consumption/pricing of a default small/medium/large/custom environment? How do I calculate?

Unfortunately, Composer is not available in GCP Pricing Calculator so I can’t check there either.

Any help is appreciated