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Home and public charging mix calculator

Estimate energy charges from a home/public charging split.

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Your result

Monthly energy cost66
Blended price per kWh0.22
Public charging energy60kWh

Calculator controls

How to calculate

Home and public charging mixHome and public charging mixHome and public charging mixAllocate energy by percentage before multiplying each portion by its own price. An 80% home split of 300 kWh leaves 60 kWh public. Concept diagram; not to scale.Home and public charging mixMonthly chargingenergy (kWh)300Energy chargedat home (%)80Monthly energycost66MyCalCute.comMonthly charging energy…300Energy charged at home (%)80Monthly energy cost66
Home and public charging mixAllocate energy by percentage before multiplying each portion by its own price. An 80% home split of 300 kWh leaves 60 kWh public. Concept diagram; not to scale.Home and public charging mixMonthly chargingenergy (kWh)300Energy chargedat home (%)80Monthly energycost66MyCalCute.com
Allocate energy by percentage before multiplying each portion by its own price. An 80% home split of 300 kWh leaves 60 kWh public. Concept diagram; not to scale.

Estimate energy charges from a home/public charging split.

Monthly energy cost = energy*(home/100*homeRate+(1-home/100)*publicRate)
Blended price per kWh = home/100*homeRate+(1-home/100)*publicRate
Public charging energy = energy*(1-home/100) kWh

Worked example

  • Monthly charging energy (kWh): 300
  • Energy charged at home (%): 80
  • Home price per kWh: 0.15
  • Public price per kWh: 0.5
  • Monthly energy cost: 66
  • Blended price per kWh: 0.22
  • Public charging energy: 60 kWh

Assumptions and limits

Enter energy billed by chargers, including losses if billed. Session fees, parking, subscriptions, time-based tariffs and tax are excluded.

Results are rounded for display; calculations use unrounded values. Read our calculation methodology.

Understanding the result

Estimate energy charges from a home/public charging split. Allocate energy by percentage before multiplying each portion by its own price. An 80% home split of 300 kWh leaves 60 kWh public.

When this tool is useful

Allocate energy by percentage before multiplying each portion by its own price. An 80% home split of 300 kWh leaves 60 kWh public.

Understanding your inputs

InputExample
Monthly charging energy (kWh) energy300
Energy charged at home (%) home80
Home price per kWh homeRate0.15
Public price per kWh publicRate0.5

Frequently asked questions

What does this estimate leave out?

Enter energy billed by chargers, including losses if billed. Session fees, parking, subscriptions, time-based tariffs and tax are excluded.

How do I check the example?

Use the stated units and the formula below. Keep full precision until the final answer; change one input at a time to see its effect.

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