2021 Mazda CX-3 2WD
2.0L 4-cyl · 6-speed automatic with select shift · FWD
GasolineRegularCompact Cars
Official EPA record #43040 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed
Per month
$128.80
Per year
$1,546
Per mile
12.9¢/mi
5-year total
$7,730
Driving mix55% city / 45% highway
$/gal
MPG
Your own average replaces the EPA laboratory values — never averaged together with them — and the driving-mix setting stops applying, because a figure you measured already contains your own mix.
Notes & official EPA estimate
386.4 gal of fuel / yeargasoline @ $4.00/galAt $5.00/gal: $161.00/mo
Official FuelEconomy.gov estimate: $2,000/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.
Compare with another vehiclePrices: EPA national averages, Jul 24, 2026 — override anytime.
At 12,000 miles per year (55% city / 45% highway) with EPA national-average prices ($4.00/gal regular), this 2021 Mazda CX-3 2WD costs about $128.80 per month in fuel — $1,546 per year, 12.9¢/mi, $7,730 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #43040. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.
Official EPA efficiency
| Measure | Value |
|---|---|
| City MPG | 29 |
| Highway MPG | 34 |
| Combined MPG | 31 |
Official EPA estimates
| Estimate | Value |
|---|---|
| Official annual fuel cost (15,000 mi/yr) | $2,000/yr |
| Tailpipe CO₂ | 289 g/mi |
| EPA greenhouse gas score | 7/10 |
| EPA smog rating (Federal Tier 3 Bin 125) | 3/10 |
Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #43040 (record updated 2021-09-02). Snapshot processed 2026-07-26; page data last changed 2021-09-02.