kWh Usage Reader — RMP Bill Calculator

Upload the utility bill

📄☀️

Drop a bill here or click to browse

The page with the "Historical Data" bar chart (Average kWh/day)

PDFJPGPNGHEIC*

Everything runs in your browser — nothing is uploaded to a server. *HEIC depends on the device; JPG/PNG/PDF are most reliable.

Calibrate the graph

Tap 1Tap the bottom baseline of the bars (the zero line).

100%

Pinch / scroll to zoom · drag to pan · tap to place a point

Top gridline value (kWh/day)

Bar darkness threshold: 110

Place 4 reference points: ① the zero baseline, ② the top gridline (default 55), ③ the left edge of the first bar, ④ the right edge of the last bar. Zoom in (pinch on mobile, scroll on desktop) for precise placement — drag to pan, tap to drop a point. The tool then measures every bar automatically; fix any misread in the next step.

Monthly usage

Annual usage

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Avg / month

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Avg / day

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Peak month

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First (left-most) bar is

Month	Days	Avg kWh/day	Monthly kWh
Annual total	—		—

Values in the Avg kWh/day column are editable — tweak any bar the auto-reader missed and the totals update instantly.