Calculate HAVS Exposure — Free A(8) Calculator for UK Contractors
Calculate daily A(8) hand-arm vibration exposure for up to 8 tools at once. Enter the vibration magnitude and trigger time for each tool — the calculator shows total exposure points, A(8) value, and whether EAV or ELV thresholds are reached.
Tools Used
How this tool works
The calculation follows the methodology in the Control of Vibration at Work Regulations 2005 (SI 2005/1093). Vibration magnitudes should come from the tool manufacturer's declared value or the HSE vibration database. Trigger time is the actual hands-on-tool time, not shift length. For multi-tool shifts, add all tools — exposure points combine across the day. This calculator is for single-worker daily exposure. For ongoing crew-level tracking with alerts and compliance reports, HAVS·Log automates the entire workflow.
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How to Calculate Hand Arm Vibration Exposure: EAV and ELV Explained
Step-by-step guide to calculating daily A(8) hand arm vibration exposure using the HSE method. Includes EAV and ELV thresholds, worked examples, and trigger times for common tools.