About CalcLoop

CalcLoop is a small set of free, focused calculators built for the day-to-day math of infrastructure work — subnetting, RAID capacity planning, SLA review, and bandwidth estimation.

The goal is simple: no sign-up, no unnecessary ads, no vague "calculator" pages padded with filler text. Every tool runs entirely in your browser — nothing you type is sent to a server or stored.

Every formula is built against an official standard, RFC, or vendor documentation rather than guesswork — see the methodology page for the full source list and review dates, or the FAQ for common questions about how CalcLoop works.

CalcLoop is run independently and funded by voluntary donations. See the donate page if you'd like to support it.

Questions, bug reports, or a calculator you'd like added? Get in touch via the contact page.