Pixels Per Foot (PPF) Calculator

Calculate pixel density at any distance for any camera + lens. IEC 62676-4 zones overlaid. License plate, face ID, and general identification thresholds — with copy-paste RFP language.

risertools.com / ppf

Preview

Inputs

Camera resolution & sensor size4MP @ 15 fps

Lens focal length (or solve from FoV)H.265+

Distance to subjectVBR

Result

PPF / PPM at distance

94 PPF at 35 ft

IEC 62676-4 zone: Identify (≥ 80 PPF)

✓ Court-admissible face ID ✓ License plate readable ≤ 25 ft

Mockup preview · final product launches Q2 2026

What this tool will do

PPF / PPM at any distance for any camera + lens combination
IEC 62676-4 zones (detect / observe / recognize / identify) overlaid on your design
License plate readability + face ID thresholds with confidence bands
RFP language generator: paste-ready spec text for your bid documents
Reverse calc: "what lens gives me 80 PPF at 50 ft?"

What's wrong with existing tools

We're building this because the existing options don't work for the people who actually deploy these systems.

IPVM's tool is paywalled

The best PPF calculator in the industry is members-only and invisible to Google. Ours is free and public.

Vendor tools are vendor-locked

Genetec and Avigilon tools require accounts and only support their own kit. We're vendor-neutral.

No one generates RFP language

Designers retype "camera shall provide 80 PPF at 50ft" every project. We generate it.

Built by an integrator, not a vendor

Built by the team behind risertools — 40+ years of combined experience designing commercial low-voltage systems.