RatioCalcConversion & Other
Conversion and Everyday Calculators
Convert rates and currencies, calculate inflation, discounts, tips, sales tax, VAT/GST and other everyday financial quantities.
These utilities apply the values and rates you enter or, where stated, a current reference data source. Verify jurisdiction-specific taxes, fees and exchange rates when precision matters.
Currency Converter
Convert between 10 major currencies using the latest available Frankfurter reference rates fetched server-side, with the rate date shown when available.
APR to APY
Convert a nominal annual percentage rate to an effective annual percentage yield using the compounding frequency you enter.
Inflation Calculator
Model future prices and purchasing power from a constant annual inflation or deflation assumption, including 0% and negative rates above -100%.
Discount Calculator
Calculate a final price after one or two sequential discounts, with each discount constrained to 0% through 100%.
Tip Calculator
Calculate a non-negative tip percentage on the amount you choose and split the resulting total evenly among one or more people.
CAGR Calculator
Calculate compound annual growth rate from a beginning value, ending value and number of years.
Sales Tax Calculator
Add a user-supplied sales-tax rate to a pre-tax price or reverse an after-tax total, while keeping the entered rate distinct from tax as a share of the final price.
VAT / GST Calculator
Add or extract a VAT, GST or similar consumption-tax rate that you have verified for the relevant jurisdiction, product or service.
How RatioCalc handles financial estimates
Calculator outputs are based on the inputs and assumptions shown by each tool. Important decisions should be checked against primary sources, actual product terms and current rules.