This bookmarklet allows you to rearrange Amazon search results by the lowest to highest price per unit of measure. It extracts price and unit information from each search result, standardizes units to milliliters, calculates the price per milliliter, and then reorders the items accordingly.

amazingpriceperunitsort.js

javascript:(function(){function convertToMilliliters(value,unit){switch(unit.toLowerCase()){case 'fl oz':case 'fl. oz':return value*29.5735;case 'oz':return value*29.5735;case 'ml':return value;case 'l':return value*1000;default:console.warn(`Unrecognized unit: ${unit}`);return null;}}function parsePriceAndUnit(element){console.log('Parsing price and unit from element:', element);let priceText=element.querySelector('.a-offscreen').textContent.replace(/[^0-9.]/g,'');let match=element.textContent.match(/\/([a-zA-Z\s.]+)/);console.log(priceText,match);if(!match){console.warn('No unit match found in element:', element);return null;}let unitText=match[1].trim();return{price:parseFloat(priceText),unit:unitText};}var pricePerUnitElements=document.querySelectorAll('[class*="a-price a-text-price"]');var items=[];pricePerUnitElements.forEach(el=>{let parentContainer=el.closest('[data-component-type="s-search-result"]');if(parentContainer){let priceAndUnitParent=el.closest('.a-size-base.a-color-secondary');if(priceAndUnitParent){let priceAndUnit=parsePriceAndUnit(priceAndUnitParent);if(priceAndUnit){console.log('Price and unit:',priceAndUnit);let{price,unit}=priceAndUnit;let milliliters=convertToMilliliters(1,unit);if(milliliters!==null){let pricePerMilliliter=price/milliliters;items.push({container:parentContainer,pricePerMilliliter:pricePerMilliliter});}}}}else{console.warn('No parent container found for element:',el);}});items.sort((a,b)=>a.pricePerMilliliter-b.pricePerMilliliter);var parentElement=document.querySelector('.s-main-slot');items.forEach(item=>{parentElement.appendChild(item.container);});console.log('Items rearranged by lowest to highest price per unit of measure.');})();