Technology calculators
25 free technology tools, each with the formula and step-by-step working.
- API Rate Limit CalculatorRequests per second your app needs.
- Audio File Size CalculatorFile size from bitrate and duration.
- Backup Window CalculatorTime to back up your data set.
- Bandwidth CalculatorBandwidth needed for users and streams.
- Battery Life CalculatorRuntime from capacity and current draw.
- Cloud Hosting Cost CalculatorMonthly cloud bill from compute and egress.
- Code Review Time CalculatorReview hours from lines changed.
- Download Time CalculatorEstimated download time from file size and connection speed.
- EV Range CalculatorReal-world range from battery and efficiency.
- Hash Collision CalculatorBirthday-problem collision odds.
- IP Address Range CalculatorAddress counts across prefixes.
- IP Range CalculatorTotal addresses and range between two IPv4 addresses.
- Password Entropy CalculatorEntropy bits and crack time.
- Print Size CalculatorMaximum print size from image pixels.
- Project Timeline CalculatorDuration with buffer and part-time staff.
- RAID Capacity CalculatorUsable capacity and fault tolerance.
- RAID Storage CalculatorUsable storage capacity for common RAID levels.
- Screen PPI CalculatorPixel density and viewing distance.
- Solar Battery Sizing CalculatorBattery bank size for days of autonomy.
- Sprint Velocity CalculatorSprints needed to finish the backlog.
- Subnet CalculatorHosts, mask and ranges for a CIDR block.
- Subnet CIDR CalculatorNetwork address, broadcast and usable host range from a CIDR block.
- Technical Debt Cost CalculatorAnnual cost of carrying tech debt.
- Uptime SLA CalculatorAllowed downtime for each SLA level.
- Video Bitrate CalculatorTarget video bitrate for a desired file size and duration.
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