Short answer
Signage ROI offers four digital signage calculators: cost per screen per month and per year, electricity cost, storage and bandwidth for content, and the screen size and text size that fit a viewing distance. Each one shows its formula and the sources behind its numbers, and none of them uses a made-up sales uplift.
Cost
Cost per screen
Display, player, software, content time, power and upkeep per screen per month and per year, and the extra sales needed to cover it.
SizeScreen size and viewing distance
How far people can read your screen, and the smallest screen for your room, from the AVIXA DISCAS rules.
PowerEnergy cost
Yearly kWh and electricity cost of screens and players, with business prices for ten European markets.
DataStorage and bandwidth
Storage per screen, the speed for a first download, monthly update traffic and the cost of streaming instead.
Read how to build the business case in digital signage ROI and what screens cost in how much digital signage costs.