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Smart Lock TCO Calculator
Calculate total cost of ownership for your smart lock deployment over time
Project Parameters
$50$600
1 door50 doors
1 year10 years
Affects battery replacement frequency
Total Cost of Ownership
$740
over 5 years
Hardware$600
Hub/Gateway$80
Batteries (5yr)$60
Per year:$148
Per door:$247
Per door/day:$0.14
💡 vs. Mechanical locks: +$590 over 5 years
Cost Breakdown
Hardware81.1%
Batteries8.1%
Calculation Methodology
Hub/Gateway Costs
- Wi-Fi: $0 (uses existing router)
- Zigbee: $80 (SmartThings, Aqara Hub)
- Z-Wave: $120 (Z-Wave controller)
- Thread: $150 (Border Router / HomePod mini)
Battery Life Assumptions
- Wi-Fi: 3 months (always-on radio)
- Zigbee: 12 months (low-power mesh)
- Z-Wave: 12 months (low-power mesh)
- Thread: 10 months (low-power IP)
Based on average 10 operations/day
⚠️ Hidden Costs Not Included
- • Door modifications ($20-100 if backset/thickness incompatible)
- • Mesh repeaters ($15-30 each if Zigbee/Z-Wave needs range extension)
- • Lock replacement (mechanical wear typically 7-10 years)