How long to charge a BMW iX3 at home
Typical trim (iX3 50 xDrive (21 inch All-Season Tires)): 32.2 kWh/100 mi · EPA range 399 mi · on a 48 A (11.5 kW) charger about 36 mi of range per hour*
EPA lists a 240 V full-charge time of 8 h for this trim, which implies an average of roughly 16.1 kW (our estimate, = 128 kWh ÷ 8 h). Chargers well above that are unlikely to charge this car faster on AC; check the owner's manual for the onboard charger rating.
Range added by charger size (typical trim)
| Charger | Range per hour | Per 8-hour night | Empty to full EPA range |
|---|---|---|---|
| 12 A at 120 V (Level 1 cord) (1.4 kW) | 4 mi | 36 mi | 89.2 h |
| 16 A at 240 V (3.8 kW) | 12 mi | 95 mi | 33.5 h |
| 24 A at 240 V (5.8 kW) | 18 mi | 143 mi | 22.3 h |
| 32 A at 240 V (7.7 kW) | 24 mi | 191 mi | 16.7 h |
| 40 A at 240 V (9.6 kW) | 30 mi | 239 mi | 13.4 h |
| 48 A at 240 V (11.5 kW) | 36 mi | 286 mi | 11.2 h |
| 64 A at 240 V (15.4 kW) | 48 mi | 382 mi | 8.4 h |
| 80 A at 240 V (19.2 kW) | 60 mi | 477 mi | 6.7 h |
*Estimates: charger kW ÷ EPA kWh/100 mi × 100, assuming the car accepts that power. Charging tapers near 100% and is slower in the cold.
All 5 trims (EPA data)
| Trim | kWh/100 mi | EPA range | EPA 240 V charge time | Energy for full range (est.) | Source |
|---|---|---|---|---|---|
| 2027 iX3 50 xDrive (20 inch Summer Tires) | 28.6 | 434 mi | 8 h | 124 kWh | record 50385 |
| 2027 iX3 50 xDrive (21 inch Summer Tires) | 32 | 398 mi | 8 h | 127 kWh | record 50611 |
| 2027 iX3 50 xDrive (21 inch All-Season Tires) | 32.2 | 399 mi | 8 h | 128 kWh | record 50386 |
| 2027 iX3 50 xDrive (22 inch Summer Tires) | 32.5 | 392 mi | 8 h | 127 kWh | record 50387 |
| 2027 iX3 50 xDrive (20 inch All-Season Tires) | 33.1 | 383 mi | 8 h | 127 kWh | record 50384 |
Source: fueleconomy.gov vehicle records (2027 model years). "Energy for full range" = kWh/100 mi × range ÷ 100, measured at the wall, so it includes charging losses and is not the battery size. Usable battery capacity is not in EPA data (data gap).
Will a bigger charger charge it faster? (per trim)
Times are empty to full EPA range. They are capped at the onboard charger rating only where EPA's own trim name states it. Otherwise they assume the car accepts the charger's full power, which may overstate the gain from 48 A and 80 A units.
| Trim | 32 A | 40 A | 48 A | 80 A | EPA 240 V time | What EPA data shows |
|---|---|---|---|---|---|---|
| 2027 iX3 50 xDrive (20 inch Summer Tires) | 16.2 h | 12.9 h | 10.8 h | 6.5 h† | 8 h | EPA time implies ≥15.5 kW average, so it accepts more than a 48 A charger gives. |
| 2027 iX3 50 xDrive (21 inch Summer Tires) | 16.6 h | 13.3 h | 11.1 h | 6.6 h† | 8 h | EPA time implies ≥15.9 kW average, so it accepts more than a 48 A charger gives. |
| 2027 iX3 50 xDrive (21 inch All-Season Tires) | 16.7 h | 13.4 h | 11.2 h | 6.7 h† | 8 h | EPA time implies ≥16.1 kW average, so it accepts more than a 48 A charger gives. |
| 2027 iX3 50 xDrive (22 inch Summer Tires) | 16.6 h | 13.3 h | 11.1 h | 6.6 h† | 8 h | EPA time implies ≥15.9 kW average, so it accepts more than a 48 A charger gives. |
| 2027 iX3 50 xDrive (20 inch All-Season Tires) | 16.5 h | 13.2 h | 11.0 h | 6.6 h† | 8 h | EPA time implies ≥15.8 kW average, so it accepts more than a 48 A charger gives. |
† Only if the car accepts that much power. This charger is more than 10% above the average power implied by EPA's own 240 V time, so treat EPA's time as the realistic figure.