The Wales international scored twice in Spurs’s 3-2 victory over West Ham United on Monday night, including a sensational 90th-minute winner.
The 23-year-old’s tally now stands at 15 goals in 23 Premier League appearances after having scored six goals in five successive league games, and prompting renewed speculation about Bale’s future.
“He’s a fantastic player. He’s one of those players that you would always like to have in your team – no doubt,” Calderón told TalkSport.
“It’s true that Real Madrid have spent a lot of money in the last two or three years, but we are in a position to pay the money that Tottenham will ask for.
“Not any amount of money, there are always limits in a sense, but Real Madrid have a very healthy economic situation so I think they could sign him.”
If Bale joined Madrid, he would be following in the footsteps of his former Spurs team-mate Luka Modric who completed a £33m move to the Bernabeu last summer.