Miranda Kerr says she's "equal" to other models.

The Australian beauty admits when she first saw other Victoria's Secret models such as Heidi Klum and Gisele Bundchen she felt quite under-confident in her ability but now knows she can hold her own.

She told New York Magazine: "I just remember, like, the first time I met Adriana (Lima), she was so beautiful. I was like, 'Why would they want me? I mean, look at her. She's incredible.' And then I met Heidi and Gisele and I was like, 'What am I doing here?'

"But now I always see myself as, like, equal to everyone."

Miranda - who has a 10-month-old son, Flynn, with husband Orlando Bloom - also revealed how it's important for women to feel confident in themselves, no matter who they are standing next to.

She said: "I can't feel bad about being who I am, just like the girl next to me can't feel bad about being who she is. Because a rose can never be a sunflower, and a sunflower can never be a rose."

"I want to encourage women to embrace their own uniqueness. Because just like a rose is beautiful, so is a sunflower, so is a peony. I mean, all flowers are beautiful in their own way, and that's like women too."