Free Interactive CRE Tools

Free Commercial Lease Tools

Interactive calculators and analyzers for commercial tenants, brokers, and property managers.

Interactive Calculators

Commercial Lease Cost Calculator

Calculate total annual and monthly occupancy cost including base rent, NNN charges, and parking for any commercial lease.

NNN Lease Cost Calculator

Break down a triple-net lease into base rent, property taxes, insurance, and CAM charges to see your true all-in cost.

CAM Reconciliation Calculator

Calculate CAM true-up amounts when actual operating expenses differ from estimated pass-through charges.

Rent Escalation Calculator

Project rent schedules over a full lease term using fixed percentage or CPI-based annual escalation rates.

Effective Rent Calculator

Calculate effective rent after accounting for free rent concessions and tenant improvement allowances.

Pro-Rata Share Calculator

Determine your tenant's proportionate share of building operating expenses based on rentable square footage.

Percentage Rent Calculator

Calculate percentage rent due above a natural breakpoint for retail leases with gross-sales-based rent clauses.

Rent Per Square Foot Calculator

Convert between annual rent per square foot, monthly rent per square foot, and total annual rent for any space size.

Analysis Tools

Lease Proposal Comparison Tool

Compare two lease proposals side-by-side on total cost, effective rent, and 5-year cost. Enter base rent, NNN charges, concessions, and escalation for each option.

Frequently Asked Questions

What free tools does Lextract offer?
Lextract offers eight free interactive calculators — including NNN cost, CAM reconciliation, rent escalation, effective rent, pro-rata share, percentage rent, and rent per square foot — plus a lease proposal comparison tool. All tools run in the browser with no account required.
Is the lease comparison tool free to use?
Yes. The Lease Proposal Comparison Tool is completely free. Enter base rent, NNN charges, concessions, and escalation rates for two competing lease proposals and the tool calculates total cost, effective rent, and 5-year occupancy cost side-by-side so you can make a data-driven decision.
How does the NNN expense calculator work?
The NNN Lease Cost Calculator breaks a triple-net lease into its four components — base rent, property taxes, insurance, and CAM charges — and computes your true all-in monthly and annual occupancy cost. Enter the figures from your lease abstract and the calculator handles the math instantly.
Can I use Lextract tools without creating an account?
All free calculators and the lease comparison tool work without an account. Only the AI extraction service — which processes your lease PDF and returns 126 structured fields — requires a credit purchase of $20 per lease.
Are Lextract's tools suitable for lease negotiations?
Yes. The tools are designed specifically for tenants, brokers, and property managers preparing for lease negotiations. Use the effective rent calculator to evaluate concession packages, the escalation calculator to model multi-year rent projections, and the comparison tool to document which proposal wins on total cost.

Need the actual data from your lease?

Upload your lease PDF and Lextract extracts all 126 fields — rent amounts, escalations, CAM caps, options, and more — in under 3 minutes.

Extract My Lease