Stacked Area Chart Maker — Multi-Series Cumulative Volume Graph
A stacked area chart layers multiple time-series bands sequentially ($Y_{total}(t) = A(t) + B(t) + C(t)$) so the top contour shows aggregate growth while inner bands depict shifting composition.
Tip: Paste Excel or Google Sheets rows (Ctrl+V / ⌘V) directly into any cell.
| # | Label | ||||
|---|---|---|---|---|---|
| 1 | |||||
| 2 | |||||
| 3 | |||||
| 4 | |||||
| 5 | |||||
| 6 |
Cumulative band boundary k at time t: Upper_{t,k} = sum_{j=1..k}(Y_{t,j}), Lower_{t,k} = sum_{j=1..k-1}(Y_{t,j}). Total volume at time t: Upper_{t,K}.
Chart Design & Use-Case Tips
- 01Cumulative band boundary k at time t: Upper_{t,k} = sum_{j=1..k}(Y_{t,j}), Lower_{t,k} = sum_{j=1..k-1}(Y_{t,j}). Total volume at time t: Upper_{t,K}.
- 02Place your most foundational, low-volatility stream in Series A at the bottom of the stack so upper bands aren't distorted by baseline swings.
- 03Only stack series that are strictly additive and share the exact same unit of measure.
- 04Use Stacked Area charts for SaaS cohort expansion, energy generation mixes, or traffic channel growth.
Frequently Asked Questions
Why can stacked area charts be misread if one isn't careful?+
Viewers sometimes mistake the top edge of an upper band for that single series' independent value rather than the cumulative sum; hovering or enabling labels clarifies individual band values.
How is a stacked area chart different from a multi-line chart?+
A multi-line chart measures every series independently from zero (allowing lines to cross), whereas a stacked area chart adds series together so bands never cross.
Can I customize the series colors?+
Yes, choose between Architectural Standard, Braun Monochrome, Signal Engineering, and Emerald & Cobalt palettes at the top of the studio.