General Contractor cost calculator

Plan a general contractor project with a deterministic range derived from the national cost-guide seed. Adjust scope, size, quality tier, and state before requesting quotes.

All calculatorsgeneral-contractorproject units
project units

Project size: 1-6 project units

Quality tier
Model estimate

$13,000-$48,700

Typical target: $23,800

Estimated range
Low: $13,000High: $48,700

Real permit data

Median $21,500 · typical $5,200$127,365 · from 1,145,131 real building permits (1986-2026)

See the Real Cost Index

Planning estimate, not a quote - request quotes from verified pros before hiring.

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Assumptions

  • General Contractor: seed anchor general-contractor / Mid-range bathroom remodel.
  • Multipliers: trade 1.00x, scope 1.00x, quality 1.00x, size 1.00x.
  • No state selected: national seed average.

Model notes

This calculator is deterministic: the same inputs return the same range every time.

Seed anchor
general-contractor / Mid-range bathroom remodel
Size model
1 project units baseline
State adjustment
51 seeded state multipliers
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