• Percent Change Calculator
    Calculate the percent change between two values with the formula (new − old) / old × 100. Get increase or decrease percentage and absolute change instantly.
  • Percent of a Number Calculator
    Calculate what p% of any number n is instantly. Enter a percentage and a number to find the result using result = (p/100) × n.
  • Discounted Price Payment Calculator
    Calculate the final payment after a percentage discount. Enter the original price and discount % to see your sale price and total savings instantly.
  • Percentage Fee Calculator
    Calculate the fee amount and the net you keep after a percentage fee. Enter a gross amount and fee rate to see your fee deduction and net total.
  • Conversion Rate Calculator
    Calculate your conversion rate as a percentage from conversions and total visitors. Free, instant tool for marketing, sales, and e-commerce analytics.
  • Click-Through Rate (CTR) Calculator
    Calculate your click-through rate (CTR) instantly. Enter clicks and impressions to get the CTR percentage for ads, emails, and search listings.
  • Sale Price Calculator
    Calculate the final sale price after a percentage discount instantly. Enter the original price and discount to see what you pay and how much you save.
  • Tip Percentage Calculator
    Find what tip percentage you actually paid. Enter the bill amount and the tip you gave to instantly see the tip rate and total.
  • Credit Utilization Percentage Calculator
    Calculate your credit utilization ratio instantly. Enter your balance and credit limit to see what percentage of your limit you're using.
  • Weight Loss Percentage Calculator
    Calculate your weight loss percentage from starting and current weight. Find what percent of your body weight you've lost in any unit (lb or kg).
  • Points-Based Grade Percentage Calculator
    Convert points earned out of points possible into a grade percentage and letter grade instantly with this free points-based grade calculator.
  • Percentage of 1RM Calculator
    Calculate your training weight as a percentage of your one-rep max (1RM). Enter your 1RM and target percentage to get the load to lift.
  • Percent Difference Calculator
    Calculate the percent difference between two values using |a−b| ÷ average × 100. Free, instant percentage difference calculator with worked example.
  • Net Profit Margin Percentage Calculator
    Calculate net profit margin as a percentage from your revenue and net profit. Free, instant profit margin percentage calculator for any business.
  • Retention Rate Percentage Calculator
    Calculate customer retention rate as a percentage from start, end, and new customers. Free online retention rate and churn calculator with formula.
  • Employee Turnover Rate Calculator
    Calculate your employee turnover rate as a percentage from separations and average headcount. Free HR tool with retention rate and a worked example.
  • Churn Rate Percentage Calculator
    Calculate your customer churn rate as a percentage from customers lost and customers at the start of the period. Free, instant, with retention rate too.
  • Unit Price Calculator
    Calculate the price per unit instantly. Enter the total price and quantity to find the unit price and compare products for the best value.
  • Discount Percentage Calculator
    Calculate the discount percentage from an original price and a sale price. See the % off and how much money you save instantly.
  • Revenue Growth Calculator
    Calculate revenue growth rate between two periods. Enter previous and current revenue to get the period-over-period percentage change instantly.
  • Percentage Change Calculator
    Calculate the percentage change between two values. Find percent increase or decrease instantly with our free, easy-to-use percentage change calculator.
  • Percentage Return Calculator
    Calculate your percentage return on any investment. Enter initial and final values to find gain or loss % plus the absolute amount instantly.
  • Final Price Calculator (Discount Then Tax)
    Calculate the final price after applying a percent-off discount and then adding sales tax. See discount amount, tax, and total savings instantly.
  • ROI Percentage Calculator
    Calculate your Return on Investment (ROI) percentage instantly. Enter the cost and final value to see net profit and percentage return.