Range Computer

Best and worst case range from battery %, pack size, and efficiency. Loads once, then works offline — built for cell dead zones.

Vehicle

Battery pack

State of charge

Battery remaining

Reserve floor (%)

Plan to land above this, not at 0

Efficiency (mi/kWh)

Low

Current

High

Distance to destination (mi) — optional

Adds arrival % and go / no-go

Range to reserve floor (10%)

Worst

— mi

to 0%: — mi

Expected

— mi

to 0%: — mi

Best

— mi

to 0%: — mi

Glide Profile SECTION EVR-1

Battery % over distance at each efficiency — the dotted slope is the charge already spent, the wedge after NOW is the spread of possible futures. Compare the destination intersections against your nav's arrival estimate.

Efficiency Sensitivity SECTION EVR-2

Range to the reserve floor across the efficiency sweep. With a destination set, the marked break-even is the efficiency you must average to make it.