As a guide, a quick somewhat impersonal wedding at the Registry Office will cost around $400. Be wary of celebrants who charge much less or who perform more than one wedding on the same day. The more time involved in planning a wedding and any lengthy travel involved will cost more. For me, Celebrancy is a rewarding hobby not a business. I refuse to do more than one wedding on the same day. A couple deserves my undivided attention.