Calculators
Fast calculators for work and everyday decisions.
Browse 20 free calculators from Toolsiva.
Discount Calculator
Calculate sale price and savings.
Percentage Calculator
Calculate a percentage of any number.
Percentage Change Calculator
Calculate percentage increase or decrease.
Tip Calculator
Calculate tip and total per person.
Age Calculator
Calculate age from a date of birth.
Average Calculator
Calculate mean, sum, minimum and maximum.
BMI Calculator
Calculate body mass index from height and weight.
Compound Interest Calculator
Estimate compound growth over time.
Date Difference Calculator
Find the number of days between two dates.
Fraction Calculator
Add, subtract, multiply or divide two fractions.
GCD and LCM Calculator
Find the greatest common divisor and least common multiple.
Loan Calculator
Estimate monthly loan payments and total interest.
Markup Calculator
Calculate markup percentage and selling price from cost.
Pace Calculator
Calculate pace and speed from distance and time.
Profit Margin Calculator
Calculate profit, margin and selling price.
Proportion Calculator
Solve a missing value in an equivalent proportion.
Ratio Calculator
Simplify ratios and calculate equivalent values.
Simple Interest Calculator
Calculate simple interest and final amount.
Time Duration Calculator
Calculate elapsed time between two times.
Unit Price Calculator
Compare product prices by quantity or weight.