EValuate: Your Guide to EV Economics

Battery Chemistry Impact

LFP (Lithium Iron Phosphate): Most stable, excellent thermal management, moderate efficiency
NMC (Nickel Manganese Cobalt): Balanced performance, good energy density, moderate efficiency loss
NCA (Nickel Cobalt Aluminum): High energy density, more temperature sensitive
LTO (Lithium Titanate): Ultra-fast charging, highest efficiency, excellent longevity

Ideal Conditions Assumed

Battery temperature: 20-25°C (optimal range)
New battery condition (minimal degradation)
Quality charging infrastructure
Standard atmospheric pressure
Consistent power delivery from grid

Real-World Factors

Temperature: Cold reduces efficiency by 10-15%
Age: 2-3% efficiency loss per 100,000 km
Charging Speed: Faster charging = more heat loss
Grid Quality: Voltage fluctuations affect efficiency
Cable Quality: Resistance adds 1-2% loss

Efficiency Optimization

20-80% charging avoids efficiency loss at extremes
Preconditioning battery improves efficiency
Moderate charging speeds reduce heat loss
Regular battery maintenance preserves efficiency
Quality charging equipment matters significantly

How to Determine EV Efficiency (km/kWh)

Method 1: Trip Computer Data

• Check your EV's trip computer or infotainment system
• Look for "Energy Consumption" or "Efficiency" display
• Note the km/kWh or kWh/100km reading
• Use data from mixed driving conditions for accuracy

Method 2: Manual Calculation

• Record odometer reading and battery % before trip
• Drive normally, then record final readings
• Formula: Distance ÷ Energy Used = km/kWh
• Example: 150km ÷ 20kWh = 7.5 km/kWh

Method 3: Charging Data

• Use charging app data (energy added vs distance driven)
• Account for charging losses (add 10-15% to energy used)
• Average over multiple charging sessions for accuracy

Typical Values: City: 8-12 km/kWh | Highway: 5-8 km/kWh | Mixed: 6-9 km/kWh
Note: This calculator focuses on energy costs only. Maintenance costs are not factored in for fair comparison.
EV Maintenance (typical): ₹0.20-0.50/km (brake pads, tires, cabin filter, coolant)

How to Calculate ICE Fuel Cost (₹/km)

Fuel Cost Calculation

• Formula: Fuel Price ÷ Mileage = Fuel Cost/km
• Example: ₹100/L ÷ 15 km/L = ₹6.67/km
• Use real-world mileage, not manufacturer claims
• Account for city vs highway driving patterns

How to Determine Real-World Mileage

• Fill tank completely, note odometer reading
• Drive normally for 200-300 km
• Fill tank again, note fuel consumed and distance
• Mileage = Distance ÷ Fuel Consumed

Fuel Price Considerations

• Use current local fuel prices (petrol/diesel)
• Consider 6-month average for seasonal variations
• Factor in different fuel grades if applicable
• Account for fuel station location (highway vs city)

Quick Estimate: Petrol @₹100/L, 15km/L mileage = ₹6.67/km fuel cost
Note: This calculator focuses on fuel costs only. Maintenance costs are not factored in for fair comparison with EV energy costs.
ICE Maintenance (typical): ₹1.50-3.00/km (tyres, break pads, oil changes, filters, spark plugs, belts, clutch, engine repairs)

Important Note

These calculations use laboratory-tested efficiency values under ideal conditions. Real-world efficiency may vary by ±5% depending on environmental factors, charging habits, and equipment quality. The 20-80% charging window typically provides 1-3% better efficiency than full 0-100% cycles.

Vehicle & Charging Parameters

Battery Chemistry

LFP - Lithium Iron Phosphate

0-100% Efficiency

91.0%

20-80% Efficiency

92.5%

Most popular in modern EVs. Excellent thermal stability and long cycle life. Moderate charging efficiency with minimal degradation over time.

Battery Capacity (kWh)

Efficiency Mode

Efficiency (km/kWh)

Fast DC Night (₹/kWh)

Fast DC Day (₹/kWh)

Fast DC Charging Speed (kW)

Home AC (₹/kWh)

Home AC Solar (₹/kWh)

Home AC Charging Speed (kW)

ICE Running Cost (₹/km)

Monthly Distance (km)

Charging Frequency & Recommendations

Charging Options Comparison

Specification	0–100% Cycle	20–80% Cycle

Charging Type	Rate (₹/kWh)	0–100% Charge Cost (Cost per km)	20–80% Charge Cost (Cost per km)	Monthly Charging Cost (Based on Usage)

Charger Type & Power	0 – 100% (Full Charge)	20 – 80% (Optimal Range)	Daily Top-Up (Based on Usage)	Weekly Top-Up (Based on Usage)

Charging Scenario	EV Cost per km	ICE Cost per km	Savings per km	Monthly Savings	Annual Savings

EValuate

Battery Chemistry Impact

Ideal Conditions Assumed

Real-World Factors

Efficiency Optimization

How to Determine EV Efficiency (km/kWh)

How to Calculate ICE Fuel Cost (₹/km)

Important Note

Vehicle & Charging Parameters

LFP - Lithium Iron Phosphate

EV Economics Dashboard

Charging Frequency & Recommendations

Charging Options Comparison

Battery & Charging Specifications

EV Charging Costs Analysis

Charging Time Estimates & Daily Usage

EV vs ICE Cost Comparison & Savings