BMW iX3
The BMW iX3 is an electric SUV. We cover 3 versions of it. Our default version, the iX3 40 (Neue Klasse), has an 82.6 kWh usable battery, an official range of up to 400 miles and charging at up to 11 kW on AC and 300 kW on DC. The maker's braked towing limit for that version is 2,000 kg.
Your car
Showing the entry-level version. Wrong version?
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Generic outline: a plain drawing for this body type, scaled to the car's published size where we have it. It is not this car. Hover over or tab through the choices to see which part each one changes.
- Usable battery
- 82.6 kWh
Official
Source
- BMW UK, press release 'New entry-level BMW iX3' (March 2026) (checked 12 October 2026)
What the document says
BMW UK, press release 'New entry-level BMW iX3' (March 2026): usable battery, 82.6 kWh
UK press release 31 Mar 2026
- Official range (WLTP)
- up to 400 miles
Official
Source
- BMW UK, iX3 technical data page (checked 13 October 2026)
What the document says
BMW UK, iX3 technical data page: WLTP combined range, up to 400 miles
Technical data, BMW iX3 40 (RWD, 235 kW) table
- Max AC charging
- 11 kW
Official
Source
- BMW UK, press release 'New entry-level BMW iX3' (March 2026) (checked 12 October 2026)
What the document says
BMW UK, press release 'New entry-level BMW iX3' (March 2026): maximum AC charging power, 11 kW
UK press release 31 Mar 2026
- Max DC charging
- 300 kW
Official
Source
- BMW UK, press release 'New entry-level BMW iX3' (March 2026) (checked 12 October 2026)
What the document says
BMW UK, press release 'New entry-level BMW iX3' (March 2026): maximum DC charging power, 300 kW
UK press release 31 Mar 2026
- Kerb weight
- 2,160 kg
Official
Source
- BMW UK, iX3 technical data page (checked 12 October 2026)
What the document says
BMW UK, iX3 technical data page: kerb weight, 2,160 kg
Technical data > Dimensions/weights
- Braked towing limit
- 2,000 kg
Official
Source
- BMW UK, iX3 technical data page (checked 12 October 2026)
What the document says
BMW UK, iX3 technical data page: braked towing limit, 2,000 kg
Technical data > Dimensions/weights
What do you want to know?
Charging times
AC times are worked out from this version's figures. Rapid-charging times are estimates, shown as a band.
| Charger | Time | Miles added per hour |
|---|---|---|
| 3-pin plug2.3 kW (10 A) | 25 h 3 min Derived 49.6 kWh to add (20→80% of 82.6 kWh) ÷ (2.3 kW × 0.86 charging efficiency for a 3-pin socket) = 25.06 h. Sources
| 8 miles per hour Derived 1.98 kW into the battery × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Sources
|
| 7 kW home charger | 7 h 47 min Derived 49.6 kWh to add (20→80% of 82.6 kWh) ÷ (7 kW × 0.91 charging efficiency for a home wallbox) = 7.78 h. Sources
| 26 miles per hour Derived 6.37 kW into the battery × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Sources
|
| 11 kW public AC | 4 h 48 min Derived 49.6 kWh to add (20→80% of 82.6 kWh) ÷ (11 kW × 0.94 charging efficiency for public AC) = 4.79 h. Sources
| 41 miles per hour Derived 10.34 kW into the battery × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Sources
|
| 22 kW public AC | 4 h 48 min Derived 49.6 kWh to add (20→80% of 82.6 kWh) ÷ (11 kW × 0.94 charging efficiency for public AC) = 4.79 h. Sources
| 41 miles per hour Derived 10.34 kW into the battery × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Sources
|
| 50 kW rapid | 1 h 14 min to 1 h 32 min Estimated Our charging-curve model scaled to the car's 300 kW DC peak, 10→80%, charger capped at 50 kW. The band is the model's measured error on detailed curves (on those test cars real charges were slower than the model): see the methodology. Sources
| 151 to 189 miles per hour Estimated Average power over the session (38–47 kW) × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Source
|
| Ultra-rapid150 kW or more | 25 min to 31 min Estimated Our charging-curve model scaled to the car's 300 kW DC peak, 10→80%, charger capped at 150 kW. The band is the model's measured error on detailed curves (on those test cars real charges were slower than the model): see the methodology. Sources
| 454 to 567 miles per hour Estimated Average power over the session (113–141 kW) × 4.01 miles per kWh. Converted from 15.5 kWh/100 km (1 mile = 1.609 km); the input figure is itself derived. Source
|
Real-world range
Official range (WLTP): up to 400 miles Official Source What the document says Technical data, BMW iX3 40 (RWD, 235 kW) tableBMW UK, iX3 technical data page: WLTP combined range, up to 400 miles
Real-world range, 100% to 0%
280 to 420 miles Estimated Official range 400 miles × 0.705–1.044 (the 10th to 90th percentile of measured ÷ official range in 65 published tests, Cool (about 6 to 14 °C)). Median 370 miles. About one test in five fell outside the band. Sources
Typical: about 370 miles. Cool (about 6 to 14 °C), mixed driving (town and A-roads, up to about 56 mph). In the 65 published tests in this temperature band (of 201 range tests we use), measured range was usually 71% to 104% of the official figure. Heater use, hills, wind and a loaded car aren't included. How we worked it out.
We don't give a figure for hot weather (28 °C and over) or for speeds above 75 mph: there isn't enough test data.
Running costs
Cost per mile
8.5p a mile Estimated Home: 26.32p/kWh ÷ 0.91 charging efficiency ÷ 4.01 miles per kWh = 7.2p a mile. Rapid: 79.0p/kWh ÷ 4.01 = 19.7p a mile. Blended 90% home, 10% rapid. Sources
A year, 9,400 miles
£795 a year Estimated 8.5p a mile × 9,400 miles. Home: 26.32p/kWh ÷ 0.91 charging efficiency ÷ 4.01 miles per kWh = 7.2p a mile. Rapid: 79.0p/kWh ÷ 4.01 = 19.7p a mile. Blended 90% home, 10% rapid. Sources
Same miles in a 45 mpg petrol car
£1,665 a year (17.7p a mile) Derived 175.3p per litre × 4.546 litres per gallon ÷ 45 mpg = 17.7p a mile; × 9,400 miles. Source
This car costs about £869 a year less than the petrol car on these inputs. Petrol at 175.3p a litre, the UK average for the week of 12 October 2026.
Towing
Check a caravan or trailer against this version's published towing figures, and see how far you could go. The limits are the maker's figures, not a recommendation.
Towing range, 100% to 10%
130 to 185 miles Estimated Solo real-world range 340 miles (the official 400 miles × 0.85, our estimate) less the range loss seen in 25 published real-world towing tests (mostly caravans): 39.3% to 57.3% (10th to 90th percentile). Sources
That's the usable range from 100% down to 10% (145 to 205 miles to empty). Based on 25 published real-world tests: how we worked it out. Enter your own solo miles per kWh to base it on your driving.
Legal check
The limits below are the maker's published figures for this version. They are not a recommendation: your car's plate and handbook decide what you may tow.
- Within the braked towing limit of 2,000 kg (200 kg to spare).
- Check the VIN plate (usually on a door pillar) or your owner's handbook for the unbraked limit.
- Nose load limit: 80 kg. Check the trailer's actual nose load at the hitch with a nose-weight gauge: it must not exceed this.
- Check the VIN plate (usually on a door pillar) or your owner's handbook for the gross train weight. The check against it can't be worked out without it.
Weight guideline
Licence
If you passed your car test on or after 1 January 1997, you can drive an electric car with a maximum authorised mass (MAM) of up to 4,250 kg and tow a trailer with a MAM of up to 3,500 kg, as long as the car and trailer together are no more than 7,000 kg. If you passed before 1997, you can usually drive a car and trailer up to 8,250 kg MAM combined. (GOV.UK, Driving licence categories, checked 13 October 2026)
Where these figures come from
- BMW UK, iX3 technical data page
official range, efficiency, length, width, height, wheelbase, kerb weight, gross vehicle weight, roof load, braked towing limit, nose load. Official / Derived. Manufacturer document: facts taken, nothing copied. Checked 13 October 2026. - BMW UK, press release 'New entry-level BMW iX3' (March 2026)
usable battery, max AC, max DC. Official. Manufacturer document: facts taken, nothing copied. Checked 12 October 2026.
Tools for this car
BMW iX3 questions
What is the BMW iX3 towing capacity?
The maker's UK towing limit is 2,000 kg braked for every version we have the maker's figure for. The iX3 40 (Neue Klasse) is 2,000 kg. The VIN plate (usually on a door pillar) or your owner's handbook has the figure for your exact car. See the towing tab.
How long does a BMW iX3 take to charge on a 3-pin plug?
About 25 h 3 min from 20% to 80% on a 2.3 kW 3-pin cable for the iX3 40 (Neue Klasse), against about 7 h 47 min on a 7 kW home charger. See the charging times tab.
What is the BMW iX3 charging speed?
The iX3 40 (Neue Klasse) takes up to 300 kW on a rapid (DC) charger and 11 kW on AC. We estimate 25 min to 31 min for 10% to 80% on a 150 kW charger: an estimate, so it's a band. See the charging times tab.
What is the BMW iX3 towing range with a caravan?
With a 1,800 kg caravan, expect about 130 to 185 miles from 100% down to 10% in the iX3 40 (Neue Klasse). That's based on 25 published real-world towing tests, not a maker's figure. See the towing tab.
What is the BMW iX3 real-world range in winter?
About 280 to 350 miles from 100% to 0% in cold weather (around 0 °C), against the official up to 400 miles for the iX3 40 (Neue Klasse). That's based on published real-world range tests. See the real-world range tab.
How much does a BMW iX3 cost to run?
About 8.5p a mile, or £795 for 9,400 miles a year, charging at home at 26.32p per kWh (the Ofgem price cap) and 10% on rapid chargers. A 45 mpg petrol car would cost about £1,665. See the running costs tab.