Gauge Chart
Gauges
Color Zones
Display Settings
Color Settings
Value Format
Free Online Gauge Chart Maker
What is a Gauge Chart?
A gauge chart displays a single value on a dial or arc, with a needle pointing to its position within a defined range. It is ideal for dashboards and KPI reports where viewers need to judge status instantly — think CPU load, sales attainment, or satisfaction scores. Color-coded zones (safe, warning, danger) make it immediately clear whether a metric is healthy, borderline, or critical without reading a single number.
Key Features
Color-Coded Zones
Define safe, warning, and danger zones on the arc so viewers know at a glance whether a value is healthy, borderline, or critical.
Multiple Gauges Grid
Display several metrics side by side in a grid layout — perfect for system dashboards showing CPU, memory, and disk usage together.
Animated Needle
The needle sweeps to position on load, drawing attention to the current reading and making live presentations more engaging.
Custom Min and Max Range
Set any numeric range — 0 to 100 for percentages, 0 to 120 for speed, or domain-specific ranges for engineering and IoT metrics.
Value Prefix and Suffix
Add units like '%', 'rpm', or '$K' directly on the gauge face so the reading is self-explanatory without needing separate labels.
AI-Powered Generation
Describe your metric in plain text and the AI creates a gauge with appropriate range, zones, and labels in seconds — no manual setup.
Best For
When to Use
- You have a single metric and need to show its position within a meaningful range
- The audience must judge status (good, warning, bad) instantly without interpreting raw numbers
- You are building an executive or operations dashboard where quick visual scanning matters
- The metric has a clear minimum, maximum, and operationally significant threshold zones
- You need to replace a plain number with a visual that conveys urgency or safety level
- You want to show multiple related metrics in a compact, side-by-side grid
Common Mistakes
- !Skipping color zones — a gauge without zones is just a dial with no context about what the reading means
- !Setting an arbitrary maximum — always base the max on a meaningful ceiling such as rated capacity or a hard physical limit
- !Cramming too many gauges — more than six in a grid makes each one too small to read accurately
- !Using a gauge for trend data — if the direction of change over time matters, use a line chart instead
- !Omitting units — a needle at 75 is meaningless without knowing whether it represents percent, degrees, or requests per second
- !Misaligning zone thresholds — zones should reflect real operational thresholds, not arbitrary thirds of the range