Security Camera Recording Cost Calculator
The Security Camera Recording Cost Calculator estimates the monthly cost of local drive capacity needed to keep security camera footage for a chosen retention period. Enter your camera count, average recording bitrate, daily recording hours, retention period, drive price, and assumed drive service life to get an estimated monthly storage cost.
This estimate is useful when comparing recording settings or planning a home or business camera system. It focuses on the cost of drive capacity over its assumed service life. The result is an estimate based on the inputs you provide, so use it as a starting point for planning rather than a complete quote for a recording system.
What the Security Camera Recording Cost Calculator does
The calculator estimates how much local storage capacity your cameras need to retain recordings, then spreads the estimated cost of that capacity across the assumed life of a storage drive. The result is displayed as Estimated Monthly Storage Cost in dollars per month.
For example, a system that records more cameras at a higher bitrate generally needs more storage than a smaller system using a lower bitrate. Keeping footage for longer also increases the amount of capacity needed. The calculator brings these factors together so you can see how a change in one input affects the estimated monthly cost.
The calculation assumes that each camera records continuously during the specified hours, uses a constant average bitrate, and overwrites older recordings after the retention period. It also assumes that the full stated drive capacity is usable and uses decimal terabytes, where 1 TB equals 1,000,000,000,000 bytes.
The default values are illustrative assumptions. Your actual camera settings, drive prices, and storage requirements may differ.
How to use the Security Camera Recording Cost Calculator
Enter the following values to estimate the cost of local recording storage:
- Number of cameras: Enter the number of cameras whose recordings will use the storage. Include the cameras you expect to record under the same average settings.
- Average bitrate per camera (Mbps): Enter the average recording bitrate for one camera in megabits per second. This is the average during recording hours, not the combined bitrate for all cameras.
- Recording hours per day: Enter the number of hours each camera records per day. Use 24 for continuous recording throughout the day.
- Recording retention (days): Enter how many days of footage you want to keep before older recordings are overwritten.
- Storage drive cost ($ per TB): Enter the assumed cost per decimal terabyte of drive capacity. For example, divide a drive’s price by its stated capacity in TB to estimate its price per TB.
- Assumed drive service life (months): Enter the number of months over which you want to spread the drive capacity cost. This is a planning assumption, not a guarantee of how long a drive will last.
After entering your values, review the Estimated Monthly Storage Cost. You can change an input to compare scenarios, such as retaining footage for 14 days instead of 30 days or recording fewer hours each day.
If your cameras use different bitrates or schedules, a single average may not fully represent the system. You can estimate separate groups of cameras with similar settings and add their results for a closer planning estimate, provided you use consistent assumptions about drive cost and service life.
How the Security Camera Recording Cost Calculator formula works
The calculator first estimates the storage capacity needed for the chosen retention period. It then multiplies that capacity by the assumed drive cost per TB and divides the result by the assumed drive service life in months.
Storage capacity in decimal TB = Number of cameras × Average bitrate per camera (Mbps) × 3,600 × Recording hours per day × Recording retention (days) ÷ 8 ÷ 1,000,000
Estimated monthly storage cost = Storage capacity in decimal TB × Storage drive cost ($ per TB) ÷ Assumed drive service life (months)
The number 3,600 converts hours to seconds. Dividing by 8 converts megabits to megabytes, and dividing by 1,000,000 converts megabytes to decimal terabytes. Because the estimate uses a fixed retention period, it assumes that older footage is overwritten rather than stored indefinitely.
Worked example using the default inputs
Suppose you use the calculator’s illustrative default assumptions:
- Number of cameras: 4
- Average bitrate per camera: 4 Mbps
- Recording hours per day: 24
- Recording retention: 30 days
- Storage drive cost: $25 per TB
- Assumed drive service life: 36 months
The capacity calculation is 4 × 4 × 3,600 × 24 × 30 ÷ 8 ÷ 1,000,000, or 5.184 TB. At an assumed $25 per TB, that amount of capacity costs $129.60. Dividing $129.60 by 36 months gives an Estimated Monthly Storage Cost of $3.60 per month.
This example uses fractional capacity. A real purchase would require enough whole drives of available sizes to provide the needed space. The purchase cost and its monthly equivalent can therefore be higher than the calculator’s result, even before accounting for other storage requirements.
Use cases for the Security Camera Recording Cost Calculator
For readers of thebestsecuritycameras.com, the calculator can help answer practical planning questions before choosing or adjusting a local recording setup.
- Compare retention periods: Estimate the difference between keeping footage for one week, one month, or another period that suits your needs.
- Plan a camera expansion: See how adding cameras may increase the amount of recording capacity required.
- Compare recording schedules: Estimate the storage cost for 24-hour recording versus a shorter daily schedule.
- Assess bitrate settings: Compare the estimated capacity cost of different average bitrates while considering the image quality you need.
- Build a storage budget: Use an assumed drive price and service life to estimate a monthly equivalent for the required drive capacity.
Each comparison depends on keeping the other inputs consistent. For example, if you double the retention period while leaving all other values unchanged, the estimated capacity and monthly storage cost also double. The same proportional relationship applies when you double the number of cameras, average bitrate, or recording hours.
Other factors to consider when calculating Estimated Monthly Storage Cost
Actual bitrate can vary. Compression settings, image detail, lighting, and motion can change how much data a camera produces. If your system uses a variable bitrate, an average based on its expected recording conditions may be more useful than a peak value, but actual usage can still differ from the estimate.
Motion-based recording needs a suitable hours estimate. The calculator assumes continuous recording during the number of hours entered. If a camera records only when motion is detected, its total recording time can change from day to day. Treat the hours entered as an assumption about its average daily recording time.
Usable capacity may be lower than the stated capacity. Formatting, system overhead, and reserved space can reduce the space available for recordings. Redundancy or other storage arrangements may also require additional capacity. The calculator assumes full use of drive capacity and does not add allowances for these factors.
Drive purchases are made in whole units. The calculated capacity can be a fraction of a terabyte, while available drives come in specific sizes. Check that your recorder supports the drives you plan to use and choose enough usable capacity for your retention goal.
The result covers drive capacity only. It excludes electricity, cloud subscriptions, recorder hardware, maintenance, formatting overhead, redundancy, and replacement costs beyond the assumed drive life. It is an amortized estimate, not necessarily a bill you will pay every month.
Frequently asked questions
Does the calculator include cloud storage fees?
No. It estimates the monthly equivalent cost of local drive capacity. Cloud subscription fees and other system costs are excluded.
What bitrate should I enter for my security camera?
Enter your best estimate of the camera’s average recording bitrate in Mbps during recording hours. Camera or recorder settings may provide a useful starting point. Because bitrate can vary with compression, motion, and scene detail, the result should be treated as an estimate.
Does recording at night as well as during the day increase storage cost?
Recording more hours generally increases the capacity needed. If the bitrate and other inputs stay the same, increasing recording from 12 to 24 hours per day doubles the estimated capacity and monthly storage cost.
Why is the monthly result lower than the price of a storage drive?
The calculator spreads the estimated cost of the required capacity over the assumed drive service life. For example, a capacity cost of $129.60 spread over 36 months equals $3.60 per month. You would still generally pay for the drive when you purchase it.
Should I buy exactly the capacity shown in the worked example?
Use the calculated capacity as a starting point. The formula uses fractional capacity and assumes every part of a drive is usable. Choose suitable whole drives and consider formatting, overhead, redundancy, and variations in actual recording needs when deciding how much capacity to buy.