Dumbbell Chart
A dumbbell chart shows two values for each category as a pair of dots connected by a line, making the gap between the values the visual point of the chart. It is the cleanest way to compare before/after, current/target, or two groups across many categories at once — far more read
Template details
- chart
- dumbbell
- comparison
- change
- d3
When to use this template
This visualization excels at highlighting the magnitude and direction of change or difference between two related values across numerous distinct categories. An analyst would choose it to quickly identify which categories exhibit the largest shifts, which remain stable, and the overall distribution of these comparisons, making it ideal for tracking progress or evaluating performance against a benchmark.
- Requires a categorical dimension and two distinct quantitative measures.
- Suitable for comparing paired values across many categories (10-50+).
- Quantitative measures must share the same unit and scale.
- Ideal for showing 'before/after' or 'actual/target' comparisons.
- When the magnitude and direction of difference is the key insight.
- Data where each category has exactly two associated numeric values.