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Weighted Average Lease Term Calculator
WALT (Weighted Average Lease Term) is the SF-weighted average of remaining lease years across the rent roll. It signals how durable cash flow is — the higher the WALT, the longer current rents are locked in. Lenders, buyers, and rating agencies use WALT to size loan terms and price acquisition cap rates. This calculator handles up to 4 tenants with custom remaining-term inputs.
WALT (years)
5.2
Total SF
45,000
Longest tenant remaining
10
Shortest tenant remaining
3
How the math works
Weighted Average Lease Term (WALT) = sum of (tenant SF × remaining years) ÷ total SF. WALT under 3 years means most leases roll soon and rollover risk dominates. WALT over 7 years means stable cash flow with minimal near-term re-leasing burden.
Lenders use WALT for loan term sizing — typically refinance window must close before WALT runs out, so a 5-year WALT can support a 5-year fixed-rate loan.
How to Use
- Enter SF and remaining lease years for each major tenant.
- Read the SF-weighted WALT, total SF, and longest/shortest term.
Frequently Asked Questions
What's a healthy WALT?
Industrial 5-8 years; office 4-7; retail 5-10; STNL 10-20. Under 3 means significant near-term rollover. Over 10 supports long-fixed-rate financing.
Should WALT use NOI or SF weights?
Both are common — SF for property management views, NOI for credit risk. NOI weighting penalizes short-WALT high-rent leases.
Does WALT include extension options?
Conservative WALT excludes options (since they're tenant decisions). Aggressive WALT includes options likely to be exercised — rare in institutional underwriting.
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