Professional-grade calculators for system designers, security engineers, and solar installers. No signup required.
Calculate CPU, RAM, and storage requirements for Dahua DSS Professional VMS deployments.
Size your HikCentral server infrastructure based on camera count, resolution, and retention period.
Compute exact HDD capacity and NVR storage requirements based on camera count, codec, and retention days.
Calculate total PoE power budget, switch recommendations, heat dissipation, and UPS sizing for IP camera deployments.
Calculate exact battery backup runtime based on UPS specs, battery configuration, connected load, and aging factors.
Calculate recording bandwidth, live view streams, WAN requirements, NIC sizing and switch uplink for any IP camera deployment.
Calculate H/V/D field of view, coverage at distance, pixels per metre and DORI detection distances for any sensor and focal length.
Analyze multi-run voltage drop, find maximum cable length and get wire gauge recommendations for CCTV, PoE and power installations.
25-year projection with IRR, NPV, LCOE, and lifetime profit across 14 currencies. Enter system cost and electricity rate.
Get exact panel count, battery capacity, inverter size, and 2026 cost estimate for off-grid, hybrid, or on-grid systems.
Get exact Ah capacity, battery count, series/parallel wiring and cost estimate for off-grid and solar storage systems.
Size your inverter with surge factors per load type. Get continuous VA, peak VA, pure/modified sine recommendation, fuse and DC cable AWG.
Size DC and AC cables for PV strings, battery runs and inverter output. Get AWG, mm², voltage drop, ampacity and NEC 690 compliance.
Side-by-side 25-year cost analysis, payback period, NPV and ROI comparison with personalized verdict for your location and usage.