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Outlets Per Circuit Calculator

Get a planning estimate of how many general-use receptacles a circuit can support, per NEC load rules.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-25 · v1.0.0

Market
Imperial · sales tax

Estimated maximum outlets

10 outlets (estimated maximum)

Check your inputs

This is a general planning guideline based on the NEC's standard per-receptacle load value, not a strict maximum-outlet-count rule — actual safe count depends on what's actually plugged in and used simultaneously, which can be far less than this theoretical maximum.

Safe continuous circuit capacity
1920 VA

With the figures above, the estimated maximum outlets comes to 10 outlets (estimated maximum). The method behind this is well established, though site conditions and material batches will move it somewhat. This is calculated for United States and cites IRC 2024. Building in another market? Change the selector above so the units and code reference follow.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • NEC 220.14(I) values each general-use receptacle at 180 VA for load calculation purposes; combined with the 80% continuous-load rule, this gives a widely used planning estimate of receptacle count per circuit

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Frequently asked questions

Does the NEC actually cap the number of outlets per circuit?
For most general-use residential receptacle circuits, no — the NEC doesn't set a hard maximum outlet count (that's more of a commercial/specific-occupancy rule in some cases). This estimate uses the NEC's standard 180 VA-per-receptacle load value as a widely used practical planning guideline.
Why does the actual safe count depend on what's plugged in?
180 VA per outlet assumes typical light general use — a single high-draw appliance (space heater, hair dryer) can use most of a circuit's capacity on its own, regardless of how many outlets are physically wired to that circuit.
Should kitchen and bathroom circuits use this same estimate?
No — kitchen countertop and bathroom receptacle circuits have their own specific NEC requirements (dedicated 20A circuits, GFCI protection, and often limits on what else can share the circuit) beyond this general planning estimate.