Want perfect curves like those of Kate Winslet and Helen Mirren? Well, researchers have now calculated a formula for the perfect hourglass figure that can help you set your target.
Scientists at the University of Manchester worked with the supermarket chain Asda to devise the formula.
Researchers said that the bust size and ratios of the thigh-height and hip-waist ratio are the crucial dimensions.
However, the curviness and symmetry of the figure are also important, they said.
In their opinion, a DD or E cup is considered the optimum bust size, while the ideal thigh-height ratio - calculated by dividing the thigh's thickest circumference by total height - is 0.3.
The hip-waist ratio is reached by dividing the circumference of the waist by that of the hips - with 0.7 being the optimum result - and scores of one to five are assigned for "body curve line" and "body symmetry" based on visual assessment.
The higher the total score, the more perfect the hourglass shape, said researchers.
"The human curve has come to represent the healthiest and most fertile form, highlighting the most suitable breeding partner and has evolved to be universally attractive to males for that reason," the Telegraph quoted Dr David Holmes, a senior psychology lecturer at the University of Manchester as saying.
"The perfect curve also impacts on other females creating mixed responses of both respect and jealousy," he added.
A survey conducted as part of the research found that 72 per cent of men are attracted to curvier women - citing a full bust, small waist and rounded bottom as the most attractive physical attributes.
On the other hand, 63 per cent of women would prefer to look like curvier celebrities such as Helen Mirren, Kate Winslet and Alesha Dixon than slimmer stars like Cheryl Cole.
The research was conducted to mark the launch of Asda's new "Tummy Tamer" dress and skirt, designed to hide and sculpt excess flab and help women cheat their way to an hourglass shape.