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EV range calculator – range circles and charger map (700 models)

EV range calculator – range circles and charger map (700 models)

by sthorat·Mar 6, 2026·1 point·2 comments
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AI Analysis

●●●BangerSolve My ProblemSlick

Answers the real EV question: can I get there and back? 700 models, live charger data, no monetization trap.

Strengths
  • •Directly solves EV owner anxiety: round-trip range circles + charger map in one view, not three separate tools
  • •Impressive data pipeline: multi-source ingestion (fueleconomy.gov, OpenChargeMap, OSM Overpass) with anti-regression guardrails and canary→stable promotion
  • •Vanilla JS + Leaflet, no build step, self-contained—shipping to Vercel means it scales without infrastructure theater
Weaknesses
  • •Charger data freshness depends on automated pipeline; OpenChargeMap/OSM coverage is incomplete in rural areas
  • •User base limited to EV owners actively trip-planning; growth ceiling is vehicle adoption rate, not market expansion
Category
Productivity
Target Audience

EV owners planning trips, especially in under-charted regions; fleet managers

Similar To

Google Maps EV routing · A Better Route Planner · Plugshare

Post Description

I built EV Mapping to answer the question EV owners actually ask: "Can I get there and back without charging?"

You pick your car, drop a start pin, set your current charge %, and hit Compute Reach. You get two circles — outer for one-way range, inner for round-trip — plus all charging stations within reach as pins. Click any pin to open navigation in Google Maps.

Stack: vanilla JS + Leaflet, no build step, hosted on Vercel. Charger data merges OpenChargeMap and OpenStreetMap Overpass with deduplication. 700+ EV presets across 20+ markets (US, EU, India, China, AU, etc.) synced every 12h via a Python pipeline on GitHub Actions.

The catalog pipeline ingests fueleconomy.gov, afdc.energy.gov, cardekho.com, and greenvehicleguide.gov.au, plus region-native seed files. It has anti-regression guardrails and a canary→stable promotion workflow so bad syncs don't silently ship.

https://ev-mapping.vercel.app Source: https://github.com/novelmartis/ev-mapping

Feedback welcome — especially on range accuracy and charger pin coverage in non-US markets.

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