Utility & Math
Everyday math utilities for percentages, ratios, averages, fuel, electricity, inflation, and random numbers.
Percentage Calculator
Use the Percentage Calculator to get a fast, readable percentage result with inputs, a clear answer, and the formula shown below.
Percentage Change Calculator
Use the Percentage Change Calculator to get a fast, readable percentage change result with inputs, a clear answer, and the formula shown below.
Fraction Calculator
Use the Fraction Calculator to get a fast, readable fraction result with inputs, a clear answer, and the formula shown below.
Ratio Calculator
Use the Ratio Calculator to get a fast, readable ratio result with inputs, a clear answer, and the formula shown below.
Average Calculator
Use the Average Calculator to get a fast, readable average result with inputs, a clear answer, and the formula shown below.
Median Calculator
Use the Median Calculator to get a fast, readable median result with inputs, a clear answer, and the formula shown below.
Random Number Generator
Use the Random Number Generator to get a fast, readable random number generator result with inputs, a clear answer, and the formula shown below.
Tip Split Calculator
Use the Tip Split Calculator to get a fast, readable tip split result with inputs, a clear answer, and the formula shown below.
Fuel Cost Calculator
Use the Fuel Cost Calculator to get a fast, readable fuel cost result with inputs, a clear answer, and the formula shown below.
MPG Calculator
Use the MPG Calculator to get a fast, readable mpg result with inputs, a clear answer, and the formula shown below.
Electricity Cost Calculator
Use the Electricity Cost Calculator to get a fast, readable electricity cost result with inputs, a clear answer, and the formula shown below.
Inflation Calculator
Use the Inflation Calculator to get a fast, readable inflation result with inputs, a clear answer, and the formula shown below. A local CPI table is included so the calculator works without live data.
Grilling Calculator
Estimate grill times by food, thickness, doneness, grill temperature, cooking style, and lid position. Save favorites and run multiple cook timers.