How Plug-In Hybrid Energy Cost Calculator Works?
This tool works by blending the electric cost per 100 miles and the gasoline cost per 100 miles according to the share of miles driven on electricity. The result is the plug-in hybrid electric vehicle (PHEV) cost per 100 miles (161 km).
Enter the electric share
Type the percentage of miles driven on battery energy. Short commuters often reach 60% to 80%.
Enter the electric cost per 100 miles
Type the cost to drive 100 miles on electricity. 30 kilowatt-hours (kWh) at $0.15 per kWh equals $4.50.
Enter the gasoline cost per 100 miles
Type the cost to drive 100 miles on gasoline in hybrid mode, for example $13.50.
Read the blended cost
The tool returns the weighted cost per 100 miles.
Plug-In Hybrid Energy Cost Calculator Formula
The formula is Blended Cost = ((Electric % × Electric Cost) + (Gas % × Gas Cost)) ÷ 100.
Blended Cost = ((Electric % × Electric Cost) + ((100 − Electric %) × Gas Cost)) ÷ 100Formula variables
- Electric %
- Share of miles driven on the battery.
- Electric Cost
- Dollars per 100 miles on electricity.
- Gas Cost
- Dollars per 100 miles on gasoline.
Worked example
- Electric Commute Share %: 65%
- Electric Cost per 100 mi: $4.50
- Gasoline Cost per 100 mi: $13.50
- Electric part: 65 × $4.50 = $292.50.
- Gasoline part: 35 × $13.50 = $472.50.
- Blended cost: ($292.50 + $472.50) ÷ 100 = $7.65 per 100 miles.
Result: $7.65 ($ blended cost)
The electric share drives the result. Charging every night raises the share and moves the blended cost toward the $4.50 electric figure.
Plug-In Hybrid Energy Cost Calculator Conversion Table
The table shows blended cost per 100 miles for 5 electric shares at 3 gasoline costs, with electric cost fixed at $4.50 per 100 miles.
Rows: Electric Commute Share % (%). Columns: Gasoline Cost per 100 mi ($). Cells: $ blended cost.
| % | $10.00 | $13.50 | $17.00 |
|---|---|---|---|
| 0% | $10.00 | $13.50 | $17.00 |
| 25% | $8.63 | $11.25 | $13.88 |
| 50% | $7.25 | $9.00 | $10.75 |
| 65% | $6.43 | $7.65 | $8.88 |
| 90% | $5.05 | $5.40 | $5.75 |
Values held constant: Electric Cost per 100 mi = $4.50.
A PHEV driven 90% on electricity costs $5.75 per 100 miles with gas at $17 per 100 miles. The same car never plugged in costs the full $17.00.
What is Plug-In Hybrid Energy Cost Calculator?
The Plug-In Hybrid Energy Cost Calculator is a tool that finds the real cost per 100 miles of a PHEV based on how often it runs on electricity. The tool reflects the mix of battery and gasoline driving.
PHEVs carry a battery with 25 to 50 miles (40 to 80 km) of electric range plus a gasoline engine. Short trips run on electricity and long trips switch to gasoline.
The blended figure lets PHEV owners compare costs with gasoline cars, hybrids, and full EVs on the same 100-mile basis.
What are the uses of Plug-In Hybrid Energy Cost Calculator?
There are 4 main uses of the Plug-In Hybrid Energy Cost Calculator: checking whether a PHEV fits a commute, measuring the value of daily charging, comparing PHEVs with hybrids, and setting company car policies.
Checking whether a PHEV fits a commute
Buyers test how much of a commute stays inside electric range.
Measuring the value of daily charging
Owners see the cost drop from charging every night.
Comparing PHEVs with hybrids
Shoppers compare the blended cost with a hybrid's gas-only cost.
Setting company car policies
Employers require charging to keep PHEV running costs low.
Need every metric in one place? Open the main MPG Cost Calculator or browse all 101 fuel calculators.