Built in line with NZS 4541:2020 Clause 4.3.12.2, the Seismic Coefficient Calculator determines the correct coefficient (C) by automatically applying zone, performance, and risk factors. The result? Accurate, standards-aligned data that helps ensure every fire protection system can withstand horizontal and vertical forces during seismic events.

Whether you’re verifying brace design or reviewing system compliance, this tool provides instant clarity — saving time and reducing the potential for costly rework.

PLEASE NOTE – If project engineer provides a site-specific Seismic Coefficient this supersedes the value given by NZS 4541:2020.