Seattle → Portland
Latest grid data on this route
- 283 g/kWh
- 36% renewable
- 11°C · normal
- 283 g/kWh
- 36% renewable
- 15°C · normal
Grid: U.S. EIA Open Data · Weather: open-meteo.com
Range by Weather Condition
In normal weather 24 of 24 EV models complete this route. Estimated charging stops among them: 0 to 2 (median 0).
Select a vehicle above to explore weather-adjusted range.
Assumptions behind these numbers
- Model assumptionStart charge 100%, arrive with 15% in reserve, charge up to 80% at each stop.
- Model assumptionUsable battery: 100% of each vehicle's listed capacity (the listed capacity may be gross or net; no correction is applied).
- Model assumptionSpeed: consumption starts from each vehicle's listed real-world efficiency, times a speed factor of 1.00 (1.00 = no speed adjustment).
- Vehicle dataWeather: each vehicle uses its own hot, normal and cold factor from our vehicle data, so consumption = efficiency x 1.00 / factor. Hot is 25 °C and above, normal is 10-25 °C, cold is below 10 °C.
- Model assumptionCharging speed: average power = min(vehicle peak kW, 150 kW cap) x 0.60 taper, plus 5 min per stop.
- MethodRange, energy and cost all use the same consumption figure. Energy is measured at the battery; charging losses are not included.
- MethodCharging stops are estimated from range and the charging window. They are not verified charging stations.
- Market dataCost: estimated energy cost at the average electricity market price for United States, residential retail average, as of 17 May 2026, older than 45 days, last available value (0.162 EUR/kWh); public charging tariffs are usually higher.
- Market dataCO2: energy x grid average carbon intensity of 283 g/kWh (United States, U.S. EIA Open Data, as of 17 May 2026, older than 45 days, last available value).
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This high density of stations means drivers will have frequent opportunities to stop, though a single charge at either end is typically sufficient for the distance given the normal climate conditions of both cities. Since the route is not cross-border, no customs or charging network compatibility issues arise. The terrain between the cities is largely along the I-5 corridor, which includes some gentle elevation changes but no extreme gradients that would significantly impact range. For EV drivers, the practical takeaway is that this is a low-risk, straightforward trip where range anxiety is minimal, and a brief mid-route charging stop is optional rather than necessary, depending on the vehicle's real-world efficiency.