Below are some selected hotels with rates in the range of €50 to €100 per night.
Gastdozentenhaus "Heinrich Hertz"
The Gastdozentenhaus "Heinrich Hertz" (house for guest lecturers) is situated in the Northwest of the university grounds, near the castle and the Hardtwald forest, and still not far away from the center of the city. It is surrounded by park areas and trees and was built in 1966.
Hotel am Markt
"Whether travelling for business purposes or for leisure, in our hotel you stay in an ideal location, right in the town centre. Our rooms have been recently refurbished and the conference facilities provide you with state of the art equipment.
After a long working day or an extensive sightseeing tour, our Café am Markt invites you to sit back for a moment and enjoy a hot drink. Situated on the central 'Marktplatz', you will find us easily either by public transport or by car."
Novotel Karlsruhe City
"The Novotel Karlsruhe City is superbly located in the city center with good transport links to the nearby exhibition center and a direct link to the neighboring convention center. It is an ideal base for both business and city breaks in the Baden-Württemberg metropolis. All 246 rooms and suites at our 4-star superior hotel are fully air conditioned and have modern, comfortable furnishings with many technological features."