# Find a configuration that fits your numbers. [VPS sizing calculator: RAM, CPU, storage and bandwidth]() Updated 2026-10-15 Enter your resource requirements to compare the four SilentVPS catalogue plans. Convert a monthly transfer allowance into an average data rate, and understand what the result can and cannot tell you. The VPS sizing tool compares your entered vCPU, RAM, storage and transfer requirements with the four configured SilentVPS plans. Its bandwidth converter calculates an average rate from a decimal transfer allowance and duration; neither result measures performance or live availability. ## Start with measurements, then leave room A useful VPS estimate starts with the application you intend to run, its working set and its busiest periods. Measure memory and disk use on an existing installation where possible. Include the operating system, database, background jobs, container overhead, uploads and local backup space in your requirements. The tool compares your entered minimums with published catalogue resources. It does not predict visitor counts, requests per second, CPU generation, storage latency or live server availability. Add headroom yourself rather than treating the smallest matching plan as a performance guarantee. ## Read memory and disk figures carefully An application using little memory while idle may behave differently during imports, upgrades, indexing or concurrent requests. Watch a representative busy period. File-system space must also cover logs, updates and temporary restore files, not just the current size of your application. If you already use Docker, its statistics command provides container memory, CPU and network counters. Container counters do not replace host-level measurements, and Linux cache accounting differs between Docker CLI output and its API. Record the units shown by each tool before comparing them. ``` docker stats --no-stream free -h df -h ``` ## Transfer allowance and port speed answer different questions A monthly transfer allowance measures an amount of data. A port rate measures how quickly data may move at a point in time. A large port rate does not mean unlimited monthly transfer, and an average rate calculated from a quota does not describe the speed available during a short download. The conversion below uses decimal units: one TB is one trillion bytes and one Mbit/s is one million bits per second. It spreads the allowance evenly over the selected number of days. Protocol overhead, peaks, provider counting rules and the direction of chargeable traffic are outside this calculation. Confirm those terms with the operator. ## Use a short workload worksheet ### Memory Enter a minimum that includes the application, operating system and your chosen headroom. Compare GB and GiB consistently; their numeric values are not interchangeable. ### CPU Enter the number of virtual CPUs required by your workload. A vCPU count alone does not specify a physical core, dedicated CPU time or a benchmark result. ### Storage Allow for application data, updates and a temporary restore. Keep an independent backup outside the same virtual machine. ### Transfer Include normal use and infrequent large transfers such as migrations or backups. Verify whether incoming traffic, outgoing traffic or both count toward the allowance. ## A catalogue match is a starting point If no plan meets all of your numbers, reduce a requirement only when your measurements justify it. Otherwise ask about a different configuration. Choosing a matching row does not reserve a server or confirm a region, network policy or provisioning time. Once the resources fit, compare the monthly and annual commitment separately. The billing calculator uses the configured prices and makes the upfront annual total explicit. ## Questions, answered ### Does the calculator estimate how many visitors a VPS can handle? No. Application code, caching, request cost, database queries and traffic patterns determine capacity. The calculator checks the resource thresholds you provide, not an unmeasured number of visitors. ### Is the transfer conversion a speed test? No. It is arithmetic over an allowance and a number of days. It does not measure a network connection or promise a port speed. ### What happens when none of the plans matches? The tool reports that no catalogue configuration satisfies every entered threshold. It does not silently relax your requirements or invent a larger plan. ## Find the guide for your next decision - [Compare the catalogue plans]() - [Compare monthly and annual billing]() - [Understand KVM and guest root access]() - [Plan a tested migration]() ## Official references - [Docker container statistics]()