Average kWh per 100 km Electric Car Chart

Introduction

If you’re comparing electric vehicles or trying to understand your EV’s energy use, one of the most important metrics is average kWh per 100 km. This number shows how much electricity the vehicle needs to travel 100 km—similar to “litres per 100 km” used for gasoline cars.

A lower kWh/100 km value means higher efficiency, lower running costs, and better range.

With Canada and the global market continuing the transition toward cleaner transportation in 2025, understanding EV efficiency helps you:

Reduce charging costs
Choose the most efficient model for long trips
Plan charging stops effectively
Evaluate real-world battery performance
Compare EV brands and technologies

This guide includes tables, charts, formulas, and examples to help you make informed EV decisions.

What Does kWh per 100 km Mean?

kWh per 100 km measures how much electrical energy an electric car uses to travel 100 kilometres.

Why This Metric Matters

Helps estimate your charging cost per trip
Shows how efficient an EV is
Allows fair comparison between different EV models
Shapes the real-world driving range

Formula

Energy Consumption (kWh/100 km) = (Energy Used ÷ Distance Driven) × 100

Example:
If your EV uses 18 kWh to drive 100 km, its efficiency is 18 kWh/100 km, which is considered very efficient today.

Factors That Affect kWh/100 km

EV energy consumption varies based on several real-world conditions:

Vehicle Weight – Heavier SUVs require more energy.
Driving Speed – Higher speeds lead to increased air resistance.
Weather Conditions – Cold Canadian winters increase HVAC and battery heating demand.
Terrain & Elevation – Climbing hills uses more power.
Tyre Type & Size – Larger or performance tyres increase rolling resistance.
Battery Health – Older batteries may consume more energy.

Average kWh per 100 km Chart (2025)

Electric Vehicle Efficiency Categories

Efficiency Rating	kWh / 100 km	Category Description
Excellent	12–16	Highly efficient compact EVs
Good	16–20	Sedans & compact crossovers
Average	20–25	SUVs & older EV models
High Consumption	25–30+	Large SUVs & performance EVs

Real-World kWh per 100 km for Popular EVs (2025)

The following table is built using EPA, WLTP, and Canadian cold-weather adjustments.

Table: Average Energy Consumption for Top 2025 EVs

Electric Car Model (2025)	Battery Size (kWh)	Avg. Consumption (kWh/100 km)	Efficiency Rating
Tesla Model 3 RWD	57.5	13.5	⭐⭐⭐⭐⭐
Hyundai Ioniq 6 RWD	77.4	14.2	⭐⭐⭐⭐⭐
Chevrolet Bolt EUV	65	15.5	⭐⭐⭐⭐
Tesla Model Y Long Range	75	17.8	⭐⭐⭐⭐
Hyundai Ioniq 5 AWD	77.4	18.5	⭐⭐⭐⭐
Kia EV6 AWD	77.4	19.6	⭐⭐⭐
Ford Mustang Mach-E	72	20.2	⭐⭐⭐
Volkswagen ID.4 AWD	82	21.4	⭐⭐⭐
Mercedes EQS SUV	108	24.8	⭐⭐
GMC Hummer EV	212	29.5	⭐

Why Some EVs Consume More Energy

Aerodynamics – Sleek sedans require less power than tall SUVs.
Drivetrain – RWD vehicles are generally more efficient than AWD.
Battery Size – Bigger batteries increase vehicle weight.
Tyres – Performance tyres sacrifice efficiency.
Performance Level – Vehicles like the Hummer EV prioritize power, not efficiency.

Cost of Driving Based on kWh/100 km

Formula for Cost per 100 km

Cost = Consumption × Electricity Rate

Example:
16 kWh/100 km × $0.15/kWh = $2.40 per 100 km

Far cheaper than gasoline.

EV Cost per 100 km in Canada

Consumption Level	kWh/100 km	Cost @ $0.12/kWh	Cost @ $0.20/kWh
Excellent	14	$1.68	$2.80
Good	18	$2.16	$3.60
Average	22	$2.64	$4.40
High	28	$3.36	$5.60

Even the least efficient EVs cost less to operate than gasoline cars.

How Canadian Weather Impacts EV Efficiency

Cold climate has a significant effect on energy use:

Cold Weather (–5°C to –25°C)

25–45% higher consumption
Increased energy for cabin and battery heating

Hot Weather (30°C+)

AC use adds 5–12% consumption

Snow & Slush

Increased rolling resistance
Noticeable drop in range

How Driving Style Affects kWh/100 km

Aggressive acceleration increases consumption
Highway speeds over 110–120 km/h raise energy use by 10–20%
Smooth driving with regen braking delivers the best efficiency

How to Reduce Your EV’s kWh/100 km

Here are practical ways to improve efficiency:

Maintain proper tyre pressure
Remove unnecessary cargo
Use Eco-Mode
Preheat the vehicle while plugged in
Use seat warmers instead of full cabin heat
Drive at a moderate, steady speed
Keep windows closed on the highway

Efficiency Improvement Table

Action	Improvement (%)
Preconditioning	5–10%
Proper tyre pressure	3–7%
Moderate speed	8–15%
Reduced HVAC use	5–12%
Eco-mode	5–8%
Less cargo weight	1–3%

EV Efficiency vs Gasoline Fuel Economy

1 litre of gasoline contains approximately 8.9 kWh of energy.
So an EV using 16 kWh/100 km is equivalent to:

16 ÷ 8.9 ≈ 1.8 L/100 km

Gas cars typically use 6–10 L/100 km, making EVs far more efficient.

Efficiency Comparison Table

Vehicle	EV Consumption	Gas Equivalent
Tesla Model 3	13.5	1.5 L/100 km
Hyundai Ioniq 6	14.2	1.6 L/100 km
Bolt EUV	15.5	1.7 L/100 km
Mach-E	20.2	2.3 L/100 km
Hummer EV	29.5	3.3 L/100 km

Future Trends in EV Efficiency (2026–2030)

By 2030, improvements in EV technology will deliver:

Better aerodynamics (drag coefficients as low as 0.18)
More efficient motors
Heat pump systems becoming standard
Lighter body materials
New battery chemistries

Expected average efficiency:

Compact EVs: 9–12 kWh/100 km
Mid-size EVs: 11–14 kWh/100 km
Large SUVs: under 20 kWh/100 km

Conclusion

Understanding average kWh per 100 km is essential for evaluating an electric vehicle’s real-world efficiency. Whether you’re selecting your next EV, planning long-distance travel, or calculating charging costs, this metric provides clear insight into how your vehicle performs.

This 2025 guide—complete with detailed tables, efficiency charts, and real-world comparisons—equips you with everything you need to make confident EV decisions.