Includes a subnet calculator, bandwidth and transfer-time calculator, storage growth estimator, and RAID capacity calculator. Designed to run as a single local HTML file on desktop and mobile browsers.
Subnet Calculator
CIDR → ranges
Binary View
Bandwidth / Transfer Time
Size ↔ speed
Storage Growth Estimator
Capacity planning
Month
Projected Usage
Increase vs Start
RAID Capacity Calculator
Usable + fault tolerance
Notes: calculations use decimal storage units for planning convenience. Actual usable file-system space will vary by filesystem, vendor unit definitions, controller metadata, formatting overhead, and reserved capacity.