How to calculate the real cost per km?

Divide the liter price by efficiency (km/liter) and add proportional fixed costs like depreciation, maintenance and insurance.

Why does gasoline price vary by region?

State taxes, distribution logistics, distance from refineries and local station competition all play a role.

Keep correct tire pressure, drive smoothly, plan routes, avoid harsh acceleration and refuel at the best-price stations on your route.

Gasoline in Mexico: how to calculate real cost per km

Rodrigo Vázquez — Mexican Tax Specialist (SAT, CFDI)

Published: 10/28/2025 • Last reviewed: 10/28/2025 • 6 min read

Calculate precisely how much each kilometer costs considering variable gasoline prices in Mexico.

Gasoline in Mexico: how to calculate real cost per km

Gasoline prices in Mexico vary by region and change weekly, complicating per-km cost calculation. See how to do it correctly.

BASIC FORMULA: Cost/km = (Price per liter ÷ Km per liter) + Proportional fixed costs

REGIONAL PRICES (2025): - North (Monterrey, Tijuana): $21-23 pesos/liter (Magna) - Center (CDMX, Guadalajara): $22-24 pesos/liter - South (Cancún, Mérida): $23-25 pesos/liter - Premium: +$2-3 pesos/liter

AVERAGE EFFICIENCY: - Compacts: 14-16 km/liter - Mid-size sedans: 11-13 km/liter - SUVs: 9-11 km/liter - Hybrids: 18-22 km/liter

REAL EXAMPLE (CDMX): - Magna gas price: $23 pesos/liter - Sedan efficiency: 12 km/liter - Fuel cost: $23 ÷ 12 = $1.92/km - Add depreciation ($1.00/km) + maintenance ($0.50/km) + insurance ($0.40/km) - REAL TOTAL COST: $3.82/km (matches SAT rate!)

SAVING TIPS:

1. Use price comparison app (Pemex, regional apps) 2. Fill up at best-price stations on route 3. Maintain correct tire pressure (+5% savings) 4. Drive smoothly (avoid harsh acceleration) 5. Plan routes to avoid congestion

FOR REIMBURSEMENT: If your company reimburses by SAT rate, you can save in practice by driving efficiently. Difference between actual cost and reimbursement is your gain.

Quilometragem allows recording refueling and calculating your vehicle's actual efficiency, helping optimize costs.