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How Much Does It Cost to Charge a BMW i4 in Washington?

Quick Answer

Charging a 2026 BMW i4 at home in Washington costs approximately $31/month — that's $0.031/mile and saves $1,380/year compared to a 28 MPG gas car at Washington's gas price of $4.10/gallon.

Sedans offer excellent aerodynamics and some of the highest efficiency ratings in the EV market, making them among the most cost-effective EVs to run daily. Moderate climates provide near-optimal EV performance year-round. Expect battery range close to EPA estimates and consistent charging costs across seasons.

Cost per Mile

$0.031

home charging

Monthly Cost

$31

1,000 miles/month

Annual Savings

$1,380

vs. 28 MPG gas car

About the 2026 BMW i4

The BMW i4 is the electric version of the beloved 4 Series Gran Coupe — a four-door fastback sedan that doesn't compromise driving dynamics for electrification. Available in eDrive40 (RWD, 301 miles) or M50 (AWD, 270 miles), it's the EV for driving purists.

Advantages

✓BMW's signature rear-wheel-drive dynamics translated brilliantly to electric

✓Stunning fastback design — one of the best-looking EVs available

✓M50 trim produces 544 hp with world-class handling

✓iDrive 8.5 is among the most refined automotive UIs available

Considerations

✗200 kW DCFC, while good, is below 800V competitors like Ioniq 5 or EV6 GT

✗M50's AWD adds weight that limits range to 270 miles

✗Gran Coupe roofline reduces rear headroom

✗No front trunk — limits total storage

Ideal Buyer

Driving enthusiasts who refuse to buy an EV that doesn't feel like a driver's car. BMW 3 or 4 Series owners ready to go electric. Buyers for whom style and dynamics matter as much as range.

vs. Gas Equivalent

Direct EV equivalent of the BMW 4 Series Gran Coupe. Gas equivalent fuel economy would be approximately 27 MPG for a comparable gas 4 Series.

BMW i4 Charging Cost Breakdown in Washington

Washington's electricity rate of $0.11/kWh is below the national average of $0.17/kWh. At this rate, the BMW i4's 81 kWh battery costs $8.91 for a full charge — making it one of the more compelling EV economics in this state.

Charging Method

$/kWh

$/month

$/year

🏠 Home (Level 2)

$0.11

$31

$377

🔌 Public Level 2

$0.20

$57

$679

⚡ DC Fast Charger

$0.49

$140

$1,680

⛽ Gasoline (28 MPG)

$4.10/gal

$146

$1,757

Based on 1,000 miles/month. Public L2 estimated at 1.8× home rate. DC fast charging at national average of $0.49/kWh.

2026 BMW i4Specs & Charging Data

200 kW DC fast charging. Level 2 at home (11 kW AC onboard) charges the 81 kWh battery in approximately 6.5 hours. 0–80% DC fast charging takes approximately 31 minutes.

Battery

81 kWh

EPA Range

301 miles

Efficiency

3.5 mi/kWh

kWh/100 miles

28.6 kWh

DC Fast Charge

200 kW max

10–80% Time

~24 min

Body Type

Sedan

MSRP

$52,200

Full Charge Cost

$8.91

EV Ownership in Washington

Washington state is a top-5 EV market, driven by Seattle, Bellevue, and a tech-heavy population. With the lowest electricity rates in the continental US ($0.11/kWh) and the greenest grid, Washington is among the best places in the world to own an EV.

Incentives & Programs

Washington offers a sales tax exemption on EVs (saving $3,000–$8,000). Puget Sound Energy and Seattle City Light offer Level 2 charger rebates and the lowest EV overnight rates in the US. The federal incentive also applies.

Charging Infrastructure

Seattle metro and I-5 corridor have excellent charging coverage. I-90 across the Cascades is well-served. Eastern Washington (Spokane) has growing coverage. The Olympic Peninsula is more limited.

Grid & Energy Source

Washington's grid is ~70% hydro (Grand Coulee, Bonneville, and others), ~8% wind, and ~8% nuclear (Columbia Generating Station). Washington EV charging is among the lowest-carbon in the world — comparable to Norway and Iceland.

WashingtonElectricity Rates & EV Savings

The average residential electricity rate in Washington is $0.11/kWh, which is below the national average of $0.17/kWh. With a gas price of $4.10/gallon, Washington ranks as a very favorable state for EV ownership.

Moderate climates provide near-optimal EV performance year-round. Expect battery range close to EPA estimates and consistent charging costs across seasons. Your BMW i4's 81 kWh battery provides up to 301 miles of EPA-rated range. Real-world range may vary by 10–30% depending on temperature, speed, and terrain.

Annual EV Cost (home)

$377

BMW i4 @ $0.11/kWh

Annual Gas Cost (28 MPG)

$1,757

@ $4.10/gallon in Washington

You save every year by driving electric in Washington

$1,380/year

That's $115/month saved vs. a 28 MPG gas car

Home vs. DC Fast Charging in Washington

Monthly cost comparison for 1,000 miles in a BMW i4:

🏠 Home L2

$31

$31/mo

🔌 Public L2

$57

$57/mo

⚡ DC Fast

$140

$140/mo

⛽ Gasoline

$146

$146/mo

Tips for Charging Your BMW i4 in Washington

Washington's moderate climate and charging infrastructure have specific implications for BMW i4 owners. Here are practical tips to maximize range and minimize charging costs in this state:

Seattle City Light's EV rate is among the lowest in the US — approximately $0.06–0.08/kWh overnight. Home charging is essentially free by national standards.

Cascade Mountain passes (Snoqualmie, Stevens, White) have significant elevation changes — budget 20% extra range for mountain crossings.

PSE customers: their ReduceMyUse EV program can add additional bill credits on top of already-low rates.

Washington's hydro grid means your EV runs on some of the cleanest electricity in North America — a true zero-emission vehicle experience.

Frequently Asked Questions

How much does it cost to charge a BMW i4 at home in Washington?

At Washington's average residential rate of $0.11/kWh, charging a 2026 BMW i4 at home costs approximately $31/month based on 1,000 miles of driving. A full charge costs $8.91.

How much does it cost to fully charge a BMW i4?

A full charge of the BMW i4's 81 kWh battery costs $8.91 at Washington's rate of $0.11/kWh. At a public DC fast charger ($0.49/kWh), that's about $39.69.

Is it cheaper to charge a BMW i4 or drive a gas car in Washington?

Home charging the BMW i4 in Washington costs $0.031/mile. A comparable 28 MPG gas car costs $0.15/mile at Washington's gas price of $4.10/gallon. EVs save approximately $1,380/year.

How long does it take to charge a BMW i4 with DC fast charging?

The BMW i4 supports up to 200 kW DC fast charging. A 10–80% charge takes approximately 24 minutes at peak speed. Actual time varies by charger capacity, battery temperature, and current state of charge.

How much does a BMW i4 add to your electric bill in Washington?

Driving 1,000 miles/month in a BMW i4 adds about $31 to your monthly electric bill in Washington. That's 28.6 kWh per 100 miles × $0.11/kWh.