Estimate electric panel upgrade cost from panel or service size in amps or kiloamps, or find the service size implied by a budget.
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Electric Panel Cost Formula
The calculator uses a simple proportional estimate based on a reference cost of $2,500 for a 200 amp electric panel or service upgrade.
Cost = (A / 200) * 2500
A = (Cost / 2500) * 200
A = kA * 1000
- Cost = estimated electric panel upgrade cost in dollars
- A = panel or service size in amps
- kA = panel or service size in kiloamps
- 200 = reference service size in amps
- 2500 = reference installed cost in dollars
If you enter the panel or service size, the calculator estimates the upgrade cost using the first formula. If you enter a cost, it estimates the service size that corresponds to that cost using the second formula. If you choose kiloamps, the calculator converts kiloamps to amps before applying the cost estimate.
Common Electric Panel Upgrade Cost Estimates
These values follow the same proportional assumption used by the calculator. Actual installed prices can be higher or lower depending on labor, permits, utility work, panel location, and local code requirements.
| Panel or Service Size | Estimated Cost | Typical Use |
|---|---|---|
| 100 A | $1,250 | Smaller or older homes with modest electrical demand |
| 150 A | $1,875 | Mid-size homes or partial upgrades |
| 200 A | $2,500 | Common modern residential service size |
| 300 A | $3,750 | Larger homes or higher electrical loads |
| 400 A | $5,000 | Large homes, workshops, or heavy electrical equipment |
Amps and Kiloamps Conversion
| Unit | Conversion | Example |
|---|---|---|
| Amps | A = A | 200 A = 200 A |
| Kiloamps | A = kA × 1000 | 0.2 kA = 200 A |
Example Problems
Example 1: Estimate the cost for a 200 amp panel
You enter 200 A as the panel or service size and leave the cost field blank.
Cost = (200 / 200) * 2500 = 2500
The estimated electric panel upgrade cost is $2,500.
Example 2: Estimate the service size from a $3,750 budget
You enter $3,750 as the estimated cost and leave the panel or service size blank.
A = (3750 / 2500) * 200 = 300
The estimated panel or service size is 300 A.
FAQ
Is this the actual cost to upgrade an electric panel?
No. This is a rough budgeting estimate. Real electric panel upgrade costs depend on electrician labor rates, permit fees, utility requirements, grounding work, meter work, panel brand, service entrance condition, and how much wiring must be changed.
Why does the cost scale directly with amps?
The calculator uses a simple linear estimate, meaning a larger service size produces a proportionally larger cost. This is useful for quick planning, but real project pricing is not always linear. For example, moving from 100 A to 200 A may require more utility or service equipment work than a simple panel replacement.
What size electric panel do you need?
The right panel size depends on your home’s electrical load. Major loads include heating and cooling equipment, electric water heaters, EV chargers, ranges, dryers, workshops, and future additions. For an actual upgrade, a licensed electrician usually performs a load calculation before recommending a service size.
