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The Charge Curve

HUB 04 · Charging Costs

Rivian R1T & R1S: Home Charging Time and Cost

Rivian's batteries are among the biggest on the road, so home charging speed matters more here than on almost any other EV. Here is the time, the cost, and the charger to use.

By Stephen V.Updated Published How we compare
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A Rivian R1T or R1S accepts up to 11.5 kW (48 amps) on AC - a normal ceiling - but the batteries are anything but normal: roughly 106 kWh (Standard), 135 kWh (Large), and up to ~180 kWh (Max). Because there is so much energy to move, a full 48-amp charger matters more here than on almost any other EV.

How long it takes

At 48 amps the R1T/R1S adds roughly 25 to 30 miles of range per hour. On the big packs a full charge is genuinely an overnight-plus affair, which is exactly why you want the fastest home charging the car will accept.

At 48 amps / 11.5 kW, 10 to 80 percent:
- Standard pack (~106 kWh): about 6.5 hours
- Large pack (~135 kWh): about 8 hours
- Max pack (~180 kWh): about 11 hours - a 40-amp charger would push this past a single night

What it costs

  • Large pack, 10 to 80 percent (~95 kWh): ~95 / 0.90 x $0.16 = about $17
  • Max pack, 10 to 80 percent (~126 kWh): about $22
  • More per charge than a small EV only because the pack is huge - per mile it is still pennies

Run it for your car

Cost-to-charge calculator

Put in your electricity rate, your battery size and your car's efficiency. The math is the same one shown above, with a 10% charging loss included so the number is realistic.

$8.09
A 10% to 80% charge
$11.56
A full (empty to 100%) charge
$0.05
Cost per mile
$5.08
Cost per 100 miles

Estimate only. Actual cost depends on your exact utility rate (including any time-of-use pricing and fees), your car's real efficiency, temperature, and charging losses. Check your electric bill for your true rate.

Connector and charger

The port depends on the model year. A 2022-2025 R1T or R1S has a CCS1 port that takes a J1772 plug directly, so any J1772 Level 2 charger works - the 48-amp units are the ones worth buying given the pack size. From model year 2026 Rivian ships a native NACS port instead: the same J1772 chargers still do the job, you just add a J1772-to-NACS adapter. Rivian also sells its own wall charger and its own adapter. Either way the cost math above is unchanged - the plug shape does not alter a kilowatt-hour.

Questions

Frequently asked

Does the Rivian need a 48-amp charger?

It accepts up to 48 amps (11.5 kW), and because the packs are so large - up to ~180 kWh on the Max - a 48-amp charger is genuinely worth it here, more than on a small-battery EV. A 40-amp unit works but adds hours on the big packs.

How much does it cost to charge a Rivian at home?

About $17 for a Large-pack 10-to-80-percent top-up and roughly $22 for the Max pack at the US average rate. It costs more per charge only because the battery holds far more energy; per mile it is still a few cents. Use the calculator above for your rate.

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We do not run a testing lab, and we do not pretend to. Where a measured number came from someone else's lab, we name them and link them. Where we could not verify something, we say so on the page rather than quietly leaving it out. Read our full method.