General Engineering Calculators — Storage, CPU, Regex & More | CalcEngine

Regex Performance

Regex performance calculator — analyze any pattern for ReDoS risk, O(n) to O(n3) time complexity, and estimated execution time per run in milliseconds.

K8s Resources

Calculate Kubernetes resource requests and limits across pods. Enter replicas, CPU millicores, and memory MiB to plan cluster capacity and avoid OOMKill or throttling.

Pod Capacity

Calculate how many pods fit on a Kubernetes node using CPU and memory requests. Instantly find your scheduling bottleneck — no cluster access required.

Disk IOPS

Calculate disk IOPS from seek time, RPM, block size, and transfer rate. Instantly estimate HDD and SSD storage performance — no sign-up required.

RAID Capacity

Calculate RAID storage capacity for RAID 0, 1, 5, 6, and 10 arrays. Enter disk count and size to see usable capacity and storage efficiency instantly

Freshness Score

Calculate freshness markers for any content type. Enter days since update and half-life to get a 0–100 freshness score and update frequency signal

CRA Score

Calculate your CRA compliance score across 5 cybersecurity domains. Assess EU Cyber Resilience Act readiness for products with digital elements — free, instant

CVE Exposure

CVE exposure calculator that scores vulnerabilities by CVSS, exploit maturity, and asset criticality to help security teams prioritize patch remediation.

Patch SLA

Use the patch SLA calculator to find CVE fix deadlines by severity. Enter discovery date to get due date, days remaining, and SLA breach status instantly

SBOM Coverage

SBOM coverage calculator: score your software bill of materials completeness — track component documentation, metadata quality, and VEX coverage in one place

OTA Compliance

Check OTA compliance rates across your device fleet. Enter fleet size, updated devices, and target to see your compliance gap and time-to-target estimate.

Device Lifecycle

Track device lifecycle compliance across your fleet. Enter EOL device counts and targets to measure your compliance rate and at-risk exposure instantly

Firmware Risk

Calculate firmware risk score for IoT and embedded devices. Enter CVE count, patch age, SBOM coverage, and exposure to get an instant 0–100 risk rating.

Vuln Response Time

Vulnerability response time calculator — enter discovery and remediation dates to check SLA compliance for Critical, High, Medium, and Low severity findings

Encryption Coverage

Calculate encryption coverage across your data assets with this encryption coverage calculator. Measure at-rest and in-transit protection gaps instantly — no sign-up needed.

EU Compliance Quiz

Use this EU device compliance quiz to check whether your IoT or connected device meets Cyber Resilience Act, RED, and CE marking requirements — no sign-up