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coût per Mile calculateur

A 270-mile Los Angeles→Las Vegas drive on $24 of gas and zero tolls works out to $0.09 per mile in 2026 — about 26% below the $0.12 US average ($0.10 gas + $0.02 tolls) and right on its route benchmark ($0.09). No tolls on I-15 and cheap Nevada pumps do the work: the 20th percentile means cheaper than 8 of 10 benchmark routes — and the SUV fuel baseline of $0.13/mi shows disciplined driving beat even that.

Your cost per mile (gas + tolls ÷ miles)
$0.09/mi
vs the 2026 US average
$0.09 vs $0.12(-26%)
vs the route benchmark
$0.09 vs $0.09(-1%)
Percentile among the 10 benchmark routes
20th — cheaper than 8 of 10
I-15 tolls
$0 — no E-ZPass decision on this corridor

Entrées

Route (or enter your own miles)

Los Angeles → Las Vegas (I-15): benchmark $0.09/mi (270 miles). A short California leg at CA pumps, then cheap Nevada gas — and I-15 carries zero tolls.

Trip miles
Your vehicle class (2026 fuel baseline)

≈24 mpg — the family default costs ~40% more per mile than a compact.

Gas spent ($)

Gas alone: $0.09/mi against the SUV baseline of $0.13/mi.

Tolls spent ($)

Pay-by-mail surcharges over E-ZPass-class transponder rates run roughly 30% on many US toll roads — so about $9 back on a $30 toll bill.

Default scenario: LA → Las Vegas · 270 miles · $24 gas · $0 tolls · SUV — edit inputs
Your trip's cost per mile — 2026
$0.09/mi
$24 gas + $0 tolls ÷ 270 miles
≈ 90 SAR (pegged rate)
Formula: ($24 gas + $0 tolls) ÷ 270 miles = $0.09/mi, ranked against the US average of $0.12 ($0.10 gas + $0.02 tolls).
The verdict

Your $0.09/mi sits right on the average for this route.

20th percentile — cheaper than 8 of 10 benchmark routes.

Percentile = your CPM's rank in our 10-route benchmark spread, from $0.08 Dallas→Houston to $0.25 NYC→Washington DC. The 2026 US average of $0.12/mi splits into $0.10 of gas and $0.02 of tolls — an out-of-pocket figure that excludes depreciation, insurance and financing (the IRS standard rate covers those too).

Gas ($0.09/mi)
$24
Tolls ($0.00/mi)
$0
Total trip spend
$24
vs US average ($0.12/mi)
-26%
vs Los Angeles → Las Vegas (I-15) average ($0.09/mi)
-1%
SUV baseline (gas only)
yours $0.09 vs $0.13
Tip

Zero tolls on this trip — you already beat the toll-paying drivers. The cheapest corridors pair no-toll interstates with cheap-gas states.

Do not confuse the $0.12/mi fuel-and-tolls average with the IRS standard mileage rate (about 70¢/mi for business in 2026) — the IRS number also covers depreciation, insurance and maintenance.

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Conseils

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Erreurs fréquentes

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FAQ

What is the average cost per mile to drive in the US in 2026?

The out-of-pocket average is $0.12 per mile: $0.10 of gas and $0.02 of tolls. It excludes depreciation, insurance and financing (the IRS standard rate, about 70¢/mi for business, covers those). And the national mean hides a wide range: $0.08 on toll-free, cheap-gas Dallas→Houston up to $0.25 on NYC→Washington DC with the NJ Turnpike.

How do I calculate my trip's cost per mile?

Divide everything you paid by the miles: (gas + tolls) ÷ miles. Worked example: a 270-mile Los Angeles→Las Vegas drive that burned $24 of gas with zero tolls = 24 ÷ 270 = $0.09/mi — 26% below the $0.12 average. Any pump receipt or banking app gives you the inputs right after fill-up.

Which US routes are cheapest per mile?

Corridors that pair toll-free interstates with cheap-gas states: Dallas→Houston (I-45) at $0.08 with Denver→Moab alongside it, then Phoenix→San Diego and Seattle→Portland at $0.10, and Los Angeles→Las Vegas at $0.09 because I-15 charges no tolls and Nevada pumps stay cheap.

Which US routes are most expensive per mile?

NYC→Washington DC tops the list at $0.25/mi: tolls alone are $0.13/mi (NJ Turnpike, tunnels and DC hot lanes) on top of $0.12 gas. Next: NYC→Boston at $0.18 (Connecticut bridges and tolls), Chicago→NYC at $0.17 (a turnpike chain stacking ~$45), and Miami→Orlando at $0.15, where tolls add 50% over the free-road version.

Does my vehicle change the cost per mile?

Strongly: the 2026 fuel baselines are about $0.09/mi for a compact (32 mpg), $0.13 for an SUV (24 mpg) and $0.16 for a pickup (19 mpg) — nearly double the compact. An EV charged at home runs about $0.05/mi, though road-trip DC fast charging can cost 2-3× that.

Is E-ZPass actually worth it?

On toll roads, yes: pay-by-mail (plate-read) surcharges over transponder rates run roughly 30% on many US toll roads — about $9 back on a $30 toll bill — and one transponder works across most Northeast and Midwestern states. On toll-free runs like I-15 to Las Vegas the question never comes up.

How do I cut my cost per mile on the next trip?

Three levers, ordered by impact: skip toll roads where a sane alternative exists (alone worth $0.02-0.13/mi depending on corridor), fill the tank in cheap states rather than at the California border ($3.20 vs $4.70/gal), and match the vehicle to the trip — a pickup carrying two people pays $0.16/mi where a compact pays $0.09. Tire pressure and moderate highway speeds add another 5-10% on top.

Is $0.12 per mile the same as the IRS mileage rate?

No, and the difference matters: $0.12 is the cash cost of fuel plus tolls only, while the IRS standard rate (about 70¢/mi for business in 2026) also covers depreciation, insurance, maintenance and financing. Use the IRS figure for a tax deduction; use the $0.12 benchmark for what a trip actually costs out of pocket.

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