# Formula for % Base calculation of width and height of a view in react native

`import {Dimensions, PixelRatio} from 'react-native'; const widthPercentageToDP = widthPercent => { const screenWidth = Dimensions.get('window').width; // Convert string input to decimal number const elemWidth = parseFloat(widthPercent); return PixelRatio.roundToNearestPixel(screenWidth * elemWidth / 100); }; const heightPercentageToDP = heightPercent => { const screenHeight = Dimensions.get('window').height; // Convert string input to decimal number const elemHeight = parseFloat(heightPercent); return PixelRatio.roundToNearestPixel(screenHeight * elemHeight / 100); }; export { widthPercentageToDP, heightPercentageToDP };`