Otto/Tools
Free tools for business travelers.
Accurate, no-signup calculators for travel reimbursement and budgeting — from the team building Otto, the AI travel agent that plans and books your work trips.
Tools
Calculator · Live
GSA Per Diem Calculator
Enter a U.S. city and your travel dates to get the exact lodging + M&IE allowance for your trip — official FY2026 federal rates, with the 75% first and last-day rule applied.
$178/day
standard rate · $110 + $68
Official GSA FY2026 rates346 U.S. cities + standard rateLodging by month + M&IETravel-nurse stipend caps
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More tools coming soon.
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Otto is an AI travel agent that plans, books, and manages your work trips — on policy and on budget, in a single chat.