Tech

How long a battery in amp-hours or milliamp-hours will run your load, what DC supply the circuit needs, whether a speaker wiring plan is safe for the amplifier, what angle a servo pulse gives, a stepper motor’s resolution, inductive and capacitive reactance, and what a 3D printed part costs in dollars.

Convert bytes, KB, MB, GB and TB in binary or decimal, work out usable RAID capacity and what redundancy costs you, measure a compression ratio, estimate a git repository’s size and how long a file takes to copy over USB.

Work out how many hosts a CIDR prefix gives you, which Ethernet category covers your run, which WiFi channel to sit on, what ping your distance allows, whether your Core Web Vitals pass, and how long a password or a bcrypt hash resists brute force.

What PC you need for a target frame rate, how many watts it pulls, what power supply that requires, how much RAM your workload wants, whether you have thermal headroom to overclock, and how long a UPS keeps it alive.

Work out the pixel density of a screen and whether it counts as Retina, how many pixels you need to print sharply at a given size in inches, and how heavy a JPEG will be at a given quality setting.

What a cloud instance costs per month in dollars, what your LLM API bill comes to, which image-generation plan fits, how many database connections your pool should hold, how long an algorithm takes at scale and how many person-months a codebase represents.