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Calculators
Percentage, discount, VAT, loan, currency and unit calculators — fast and accurate.
Percentage Calculator
Percent of, percent change, increase and decrease.
Discount Calculator
Sale price, savings and stacked discounts.
VAT Calculator
Add VAT to a price or extract it from a gross amount.
Loan Calculator
Monthly payment, total interest and amortization.
Currency Converter
Daily exchange rates for 30+ world currencies.
Unit Converter
Length, weight, temperature, area, volume and more.
GPA & Grade Average Calculator
Semester & cumulative GPA or weighted averages.
Standard Deviation & Statistics Calculator
Mean, median, mode, variance and standard deviation.
Accurate everyday calculators
From percentages and sale discounts to adding or removing VAT, estimating monthly payments for mortgages and car loans, converting currencies at up-to-date rates, converting units, and computing GPA and statistics — this category gathers the calculators you need for daily life, study and work.
Each calculator explains the formula with worked examples so you can understand and verify the result yourself, and avoid classic mistakes like adding stacked discounts or extracting VAT incorrectly.