Plan panel capacity, EV charging, breakers, and household load growth with confidence
This hub is for homeowners trying to understand whether an existing electrical system can support the upgrades they want next.
Understand likely panel, breaker, and load constraints before you hire.
Load planning, panel upgrades, EV charging, and breaker sizing.
Show up with a better understanding of the constraint you are trying to solve.
Start with the electrical limitation you are trying to solve
Start here before you call an electrician if your main question is panel capacity, EV charging, or circuit planning.
Can my panel handle a Level 2 charger?
Check panel load and whether a service upgrade is likely.
Start here →Do I need a panel upgrade?
Plan for electrification, older service equipment, and future load growth.
Start here →What breaker size should protect this load?
Use NEC planning logic for breaker and wire compatibility.
Start here →Electrical planning tools for upgrades, capacity, and code-adjacent sizing
Start here before you call an electrician if your main question is panel capacity, EV charging, or circuit planning.
EV Charger Load Calculator
Find out if your panel can handle a Level 2 charger or what upgrade you need.
Panel Upgrade Calculator
Size an electrical panel upgrade for solar, EVs, or electrification.
Home Load Calculator
Calculate total electrical demand in amps and kW across major loads.
Circuit Breaker Calculator
Find the right breaker size for any load using NEC planning rules.
Use this hub when the decision is bigger than one formula
Start here before you call an electrician if your main question is panel capacity, EV charging, or circuit planning. If you already know the exact calculation you need, jump into one tool below. If you are still comparing paths, start with the scenario cards and use the supporting guidance on this page to narrow the right direction before you run numbers in detail.
Use the right tool for the right decision
These pages work best when you start from the decision you are actually making instead of browsing every calculator in parallel.
Panel upgrades are often a planning problem before they are a contractor problem
The useful first step is understanding demand growth and service size, not shopping contractors immediately.
Home demand is about coincidence, not every load at once
The best planning tools model realistic simultaneous demand rather than summing every theoretical surge event.
Treat code guidance as planning guidance here
These tools help you frame the problem, but final equipment choices still need local-code and installer validation.