Percentage Calculator
Calculate basic percentages, portion ratios, and rates of numbers instantly.
Online Percentage Calculators
Fast, accurate, and advanced percentage tools for professionals and daily usePercentage Increase
Compute the rate of growth and percentage increase between two values.
Percentage Decrease
Calculate the rate of decline and percentage drop between two values.
Reverse Percentage
Find the original pre-tax value or baseline figure from a modified number.
Percentage Difference
Calculate the absolute percentage difference between two independent numbers.
Percentage Error
Analyze deviation and calculate percentage error between estimated and exact values.
Compound Growth
Compute compound interest rates and Compound Annual Growth Rate (CAGR).
Percentage Add
Easily add a tax percentage or markup rate directly to any base value.
Percentage Exclude
Subtract a percentage discount, deduction, or tax rate from a total sum.
Ratio Calculator
Find the proportion and percentage ratio relationship between two quantities.
Large Numbers
Process math operations and percentages with high precision on large figures.
Discount Percentage
Find the final discounted price, total cash savings, and net rate reduction.
Net Profit Calculator
Calculate your true net earnings after VAT exclusion and income tax deductions.
Why Choose Ratias?
âš¡ Ultra Fast
Loads in under 0.5 seconds. Designed using vanilla tech stack with zero third-party scripts for optimized core web vitals.
📱 Responsive Layout
Mobile-first UI crafted with glassmorphic tokens. Beautiful look and flawless operations on mobile, tablet, and desktop screens.
🎯 Ad-Free & Pure
No pop-ups, no spam, no distracting ads. Just pure mathematical logic and clean interfaces tailored to user productivity.
Frequently Asked Questions
How do you calculate a percentage?
To find the percentage of a number, multiply the number by the percentage rate and divide by 100. For example, to find 15% of 200: (200 x 15) / 100 = 30.
What is the formula for percentage increase?
The formula for percentage increase is: ((New Value - Old Value) / Old Value) x 100. For example, if a value grows from 100 to 150, the increase is 50%.
How to calculate VAT-inclusive price?
Multiply the price excluding tax by (1 + tax rate / 100). For example, with a 20% VAT, a $100 item becomes 100 x 1.20 = $120 including tax.
What is the difference between percentage difference and percentage change?
Percentage change measures growth or decline relative to an old starting value. Percentage difference calculates the absolute difference between two independent values divided by their average.
What is compound growth used for?
Compound Annual Growth Rate (CAGR) measures the average annual growth rate of an investment or metric over a multi-year period, compounding interest/growth over time.