Security Camera Coverage Calculator
How many security cameras will I need for my security camera system?
Wondering how many security cameras you need? Use our quick calculator to find the perfect CCTV camera setup for your home or CCTV camera setup for your business. Simply enter your property details below and get a tailored estimate instantly — powered by CCTVSecurityPros. When you’re ready, explore our security camera installation services or browse all security cameras and network video recorders to complete your system. Need help? Visit our help and support center or check out our security best practices for expert tips.
How Many Security Cameras Do I Need?
Determine the number of cameras needed for your home or business security camera system.
How Our Camera Calculator Works
Our calculator estimates the number of cameras you might need by looking at the total square footage of your property. On average, we recommend one camera per 500 square feet as a baseline.
If you select wide-angle cameras, the calculator reduces the total because these cameras can cover a larger area per camera — often up to 20% more coverage, which can mean fewer cameras overall.
If you select the PTZ (Pan-Tilt-Zoom) option, it adds one additional camera. PTZ cameras allow you to control the camera’s direction and zoom in/out remotely, making them ideal for larger spaces where you need to monitor different areas as needed.
When to Choose Wide-Angle vs. Zoom or PTZ Cameras
✅ Wide-Angle Cameras: Perfect for covering big, open spaces like parking lots, warehouses, large rooms, or backyards. One wide-angle camera can monitor more area without losing image clarity.
✅ Zoom Cameras: If you need close-up detail — for example, to capture license plates, cash registers, entryways, or gates — a camera with a zoom lens or “zoom area” may be a better fit.
✅ PTZ Cameras: PTZ (Pan-Tilt-Zoom) cameras are controllable, allowing you to rotate the view, tilt up and down, and zoom in to specific spots. PTZ cameras are ideal for large commercial properties, perimeters, and places where you need active monitoring.
Important Note
This calculator provides a quick estimate to help you plan your camera setup. Every property is unique, so the best way to get an accurate system design is to speak with one of our experienced security experts.
Call our team at 888-653-2288 — we’ll review your property’s layout, recommend the perfect setup, and help you choose cameras that fit your exact security goals.
Frequently Asked Questions
1. What’s the best number of cameras for my property?
Most homes do well with 4–8 cameras covering all key entry points, driveways, and backyards. Businesses often need more, especially for larger interior spaces or parking areas. Our calculator gives you a quick estimate tailored to your property’s size.
2. Should I choose indoor, outdoor, or both types of cameras?
That depends on what you need to monitor. Outdoor cameras are weatherproof and built to see in low light, while indoor cameras can cover hallways, offices, or other interior spaces. Many customers opt for a combination of both to protect all critical areas.
3. What are wide-angle cameras, and why would I need them?
Wide-angle cameras feature a larger field of view — often up to 100° or more — allowing you to cover big spaces like yards, warehouses, or parking lots with fewer cameras. This can reduce cost and simplify installation without losing coverage.
4. What is a PTZ camera, and when is it a good choice?
PTZ (Pan-Tilt-Zoom) cameras let you control their movement and zoom level in real time. PTZ cameras are ideal for larger commercial properties, perimeter monitoring, and live surveillance — especially where you want to follow action as it happens or zoom in on important details like faces or license plates.
5. Do I need cameras with zoom capability?
Zoom cameras help you focus on specific points like gates, safes, cash registers, or license plates. They deliver high-detail footage from a distance, making them invaluable for security-critical spots.
6. What do you mean by specifying zoom areas in the calculator?
When you list particular zoom areas — like a front door or safe — we can recommend cameras that provide close-up detail for these key spots. That way, you’ll never miss the fine details that matter most to you.
7. Do night vision cameras really work in complete darkness?
Yes. Our infrared-equipped cameras capture clear footage even when there’s zero light. Many models automatically switch to night mode after dark, so you’re protected 24/7 without needing extra lighting.
8. Can I view my cameras remotely on my phone?
Absolutely. Our NVR and DVR-based systems feature free mobile apps so you can view live feeds, playback recordings, or even control PTZ cameras — anytime and from anywhere — with no subscription fees.
9. Do your cameras require a monthly subscription?
No. Our security systems record footage locally to DVRs or NVRs — so you maintain complete ownership of your data with no recurring subscription charges.
10. How long can my recorder store footage?
That depends on your recorder’s hard drive size and number of cameras. Our NVRs typically store 2–4 weeks of continuous footage by default, and you can easily upgrade to a larger drive for even more capacity.
11. Do you offer wireless or wired cameras?
We offer both! Wired IP cameras use Power over Ethernet (PoE) for simple, stable connections — one cable for power and data. Wireless WiFi cameras offer flexibility and quick setup. Our team can help you choose the best mix for your property.
12. Do you offer tech support or installation help?
Yes. Our USA-based tech support team is here to help with setup, troubleshooting, or system optimization. And if you’d like professional installation, we can refer you to one of our trusted partners.
