Skip to content

Commute Arbitrage

Commute
Arbitrage.

What is your commute actually costing you?

Two Bay Area homes at the same price aren't worth the same to you. Your time is the missing variable.

Most buyers compare list prices. But a $2.5M home with a 90-minute round-trip commute doesn't equal a $2.8M home 10 minutes from your office. This calculator prices your time using your actual household income and turns commute hours into dollars, so you can compare two homes on true cost — list price plus lifetime commute value.

Third-party content

The commute calculator is off by default.

The maps, address search, and drive-time routing are provided by Mapbox. Nothing is requested from Mapbox, and no data leaves your browser, until you choose to load it.

By clicking, you consent to loading third-party content from Mapbox, which may receive your IP address and set its own cookies.

Methodology

Household hourly rate

Combined gross income minus estimated federal, California state, and FICA taxes yields net income. Discretionary hours per person = 5,840 waking hours per year minus 2,000 work hours = 3,840. For a dual-earner household, 7,680. Net income divided by discretionary hours gives your effective household hourly rate. Estimate only — actual figures vary.

Commute time

Commute times come from Mapbox Directions API with traffic-aware routing, priced at typical weekday depart/return times (8 AM out, 6 PM back). Annual office days = 240 minus (WFH days × 50). Household annual hours sum across both earners in dual mode. Typical times — actual traffic varies.

Vehicle cost

Household annual miles multiplied by the IRS 2026 standard mileage rate ($0.67/mi). This covers fuel, wear, insurance, and depreciation as a blended rate. Estimate only — actual figures vary by vehicle.

Lifetime projection

Total annual cost compounded at 4% annually across the years-in-home slider. The 4% represents a blend of inflation and income growth. Projection based on 4% annual growth assumption.

True cost

List price plus lifetime commute cost. The home with lower true cost is the arbitrage winner. The tool also computes how much MORE you could pay for the winner and still come out ahead over the same horizon. Estimate for comparison purposes only.

What is NOT included

Quality of life, stress cost, health effects of long commutes, family time, schools, appreciation differentials, property tax variation, HOA, insurance differences, and specific mortgage rate assumptions. This tool prices the commute variable alone. A full analysis requires a conversation.

The Next Step

Want a deeper analysis
for your specific situation?

I run quantitative property analyses for Bay Area buyers comparing multiple homes. The calculator above shows the surface. A consultation goes into school boundary impact, ADU potential, appreciation modeling, and specific properties matching your time-value profile.

Book a Consultation
Important Disclaimer

This calculator provides rough approximations only. All figures shown are estimates based on user-supplied inputs, publicly available data, and general assumptions about tax rates, commute times, and cost projections. Actual figures will vary.

Not financial, tax, legal, or real estate advice. This tool is provided for informational and educational purposes only. It does not constitute professional financial, tax, legal, or real estate advice. Users should consult qualified professionals before making financial or real estate decisions.

Tax calculations are approximate. The tax engine uses estimated 2026 federal and California tax brackets. Actual tax liability depends on many factors not captured here including deductions, credits, filing status specifics, other income sources, and changes in tax law. Consult a licensed tax professional for accurate tax analysis.

Commute times are estimates. Traffic conditions, road closures, weather, and other factors will cause actual commute times to vary from Mapbox's projections. The times shown reflect typical patterns at specified departure times but are not guaranteed.

Vehicle costs use the IRS standard mileage rate ($0.67/mile for 2026). Actual vehicle operating costs vary based on vehicle type, driving conditions, maintenance, and other factors.

Home prices and appreciation are user-supplied. This calculator does not predict future home values, market conditions, or investment returns. The 4% annual growth assumption for lifetime cost projection is a general inflation estimate and does not represent guaranteed rates.

Not a listing agreement or offer. Use of this calculator does not constitute a real estate listing agreement, contract, or offer to buy or sell property.

For accurate analysis specific to your situation, consult qualified professionals including a licensed real estate agent, tax advisor, financial planner, and mortgage professional.

Ken Hampel is a licensed California real estate agent (DRE #02070551) with Compass. This tool represents his own analysis framework and does not constitute official Compass or brokerage advice.