[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# Pricing\n\nCloud Key Management Service pricing\n====================================\n\nThis page describes the pricing information for Cloud KMS. Prices\nare effective March 17, 2025.\n\nCloud Key Management Service charges for usage based on the following price sheet. A bill\nis sent out at the end of each billing cycle, listing previous usage and\ncharges. Prices on this page are listed in US dollars (USD).\n\n\nIf you pay in a currency other than USD, the prices listed in your currency on\n[Cloud Platform SKUs](https://cloud.google.com/skus/)\napply.\n| **Important:** You must [sign up for billing](https://console.cloud.google.com/project/_/settings) before you can start using Cloud KMS.\n\nPricing overview\n----------------\n\nCloud KMS pricing is based on the number of active *key versions* ,\nthe [*protection level*](/kms/docs/algorithms#protection_levels) on\nthe key versions, and a usage rate for *key operations*. For keys with\nprotection level SOFTWARE, asymmetric keys and symmetric keys have the same\nprice.\n\nAs part of the [Google Cloud Free Tier](/free), Cloud KMS lets\nyou use keys created using Cloud KMS Autokey for free up to specific limits.\nThese usage limits are available both during and after the free trial period. If\nyou are no longer in the free trial period, usage beyond these Always Free\nlimits is charged according to the pricing table above.\n\n**Notes**\n\n1. Prices do not include any charges that may be imposed by the\nexternal key management partner's system.\n\n2. A key version is active if it is in any of these\n[states](/kms/docs/key-states):\n\n- [Enabled](/kms/docs/key-states#enabled)\n- [Disabled](/kms/docs/key-states#disabled)\n- [Scheduled for destruction](/kms/docs/key-states#scheduled_for_destruction)\n\n\u003cbr /\u003e\n\n3. Cloud KMS bills monthly for the number of active\nkey versions which you have for the month. This is not rounded but based on\nactual consumption. That is, if you had a key version that was active for only\n2 days, you would be billed proportional to that usage, and not for the whole\nmonth.\n\n4. A cryptographic operation is any form of encryption,\ndecryption, signing, or generating random bytes.\n\n5. All billable items are billed to the project that owns the key,\neven for [CMEK](/kms/docs/cmek) keys that operate on a resource owned\nby another project.\n\n6. Cloud KMS bills cryptographic\noperations per 10,000 operations. This is not rounded but based on actual\nconsumption. That is, if your project performed 25,000 cryptographic\noperations, you would be billed for 2.5 times 10,000 operations.\n\n7. Monthly free usage limits are aggregated across projects by\nbilling account and reset every month; you are billed only for usage past the\nmonthly free usage limits.\n\n8. Monthly free cryptographic key operations only apply to\noperations performed using key versions created using Cloud KMS Autokey.\n\n9. Rotating a key---creating a new key version---is an\nadministrative operation that is always free. Re-encrypting data to use the\nnew key version counts toward your cryptographic key operations.\n\nPricing example\n---------------\n\nIn this example, we show a simple scenario that might apply if you are just getting started with Cloud KMS. We use a monthly billing period to simplify the calculations.\n\nSuppose you have the following key usage pattern in a given month:\n\n- 100 keys ([`CryptoKeys`](/kms/docs/reference/rest/v1/projects.locations.keyRings.cryptoKeys)) with protection level SOFTWARE, with each key having 5 active versions, for a total of 500 key versions ([`CryptoKeyVersions`](/kms/docs/reference/rest/v1/projects.locations.keyRings.cryptoKeys.cryptoKeyVersions)).\n- 100,000 key use operations for symmetric encryption and decryption, or signing and verification. (Key admin operations are free.)\n- 10,000 key use operations for retrieval of a public key for an asymmetric key.\n- 50,000 key use operations for asymmetric signing.\n\nYour bill for the month would be calculated as follows:\n\n- 500 key versions at $0.06: $30.00.\n- 100,000 key use operations for symmetric encryption and decryption (or signing and verification) at $0.03 per 10,000 operations: $0.30.\n- 10,000 key use operations for retrieval of a public key at $0.03 per 10,000 operations: $0.03.\n- 50,000 key use operations for asymmetric signing at $0.03 per 10,000 operations: $0.15.\n\n**Total for this pricing example: $30.48**\n\nCloud HSM for Google Workspace pricing\n--------------------------------------\n\nThis section explains Cloud HSM for Google Workspace pricing details.\n\nPricing overview\n----------------\n\nEach instance of Cloud HSM for Google Workspace is charged a flat monthly fee. Each instance has a capacity of 1,000 transactions per second.\n\nTo see pricing, select a region from the drop-down list above the following table:\n\nCharges are incurred as follows:\n\n- Your project starts incurring Cloud HSM for Google Workspace charges when you create an instance. Whether you use the instance or not, you're charged based on the provisioned capacity.\n- Pricing is prorated per day.\n\nPricing example\n---------------\n\nExample 1:\n----------\n\nSuppose you have following usage for Cloud HSM for Google Workspace:\n\n- Cloud HSM for Google Workspace instance provisioned on 16th day of the billing cycle\n- One Cloud HSM key version is provisioned\n- 1 million encrypt/decrypt operations\n\nThen, your bill for the month might resemble the following:\n\n- Half month usage of one Cloud HSM for Google Workspace instance: $1875\n- One Cloud HSM key version at $1: $1\n- 1 million operations at $0.03 per 10K operations: $3\n\n**Your pricing total for the month: $1879**\n\nExample 2:\n----------\n\nSuppose you have following usage for Cloud HSM for Google Workspace:\n\n- One instance of Cloud HSM for Google Workspace\n- Two Cloud HSM key version are provisioned\n- 20 million encrypt/decrypt operations\n\nThen, your bill for the month might resemble the following:\n\n- One month usage of one Cloud HSM for Google Workspace instance: $3750\n- Two Cloud HSM key versions at $1: $2\n- 20 million operations at $0.03 per 10,000 operations: $60\n\n**Your pricing total for the month: $3812**\n\nViewing usage\n-------------\n\nThe Google Cloud console provides a transaction history for each of your projects.\nThis history describes your current balance and estimated resource usage for\nthat particular project.\n\nTo view a project's transaction history, go to the\n[estimated billing invoice page](https://console.cloud.google.com/billing/unbilledinvoice).\n\nWhat's next\n-----------\n\n- Read the [Cloud Key Management Service documentation](/kms/docs).\n- Get started with [Cloud Key Management Service](/kms/docs/create-encryption-keys).\n- Try the [Pricing calculator](/products/calculator).\n- Learn about [Cloud Key Management Service solutions and use cases](/architecture?text=Cloud Key Management Service).\n\n#### Request a custom quote\n\nWith Google Cloud's pay-as-you-go pricing, you only pay for the services you use. Connect with our sales team to get a custom quote for your organization.\n[Contact sales](/contact?direct=true)"]]