GSA Per Diem Rate Calculator

GSA per diem rates and travel per diem totals from the official tables, inside ChatGPT. Ask "what's the GSA per diem for San Diego" or "per diem rate for Denver in November" and get the maximum lodging rate for that month (seasonal rates differ), the M&IE rate, the 75% first and last day amount and the breakfast, lunch, dinner and incidentals breakdown. Alaska, Hawaii, Puerto Rico, Guam and other US territories use the DoD non-foreign OCONUS rates; foreign cities use the State Department's monthly OCONUS rates. Then total a whole trip: one destination or several legs, each night at its own month's and fiscal year's rate (trips across 1 October are handled), nights = days minus one, M&IE at 75% on the first and last day (the FTR rule the JTR also uses), meals provided at a conference deducted at the official amounts, and your actual room rate capped at the limit. You get a day-by-day table and a CSV for an expense report, voucher or grant budget. Rates come live from the GSA Per Diem API, the DoD bulletins in the Federal Register and the State Department, and follow the Federal Travel Regulation (41 CFR 301-11). Your trip details are not stored. Not affiliated with GSA or DoD; your travel office decides what is reimbursed.