Clock angle calculator
Find the smaller angle between ideal hour and minute hands.
Open calculatorWhat’s on your mind?
Find a little clarity. Search by name, or pick a category.
Showing 97–120 of 151 tools · Page 5 of 7
Compass direction and bearing calculator
Normalize a bearing and see its nearest 16-point compass direction.
Open calculatorDistance and midpoint calculator
Find distance and the halfway point between two Cartesian coordinates.
Open calculatorLinear interpolation calculator
Estimate a value between two reference points using a straight line.
Open calculatorFraction calculator
Add, subtract, multiply or divide two fractions with exact integer arithmetic.
Open calculatorInvisible character generator
Copy a known blank-looking Unicode character and see exactly what it contains.
Open toolWikipedia plain-text extractor
Import a Wikipedia article or tidy pasted plain text, then copy or download the result.
Open toolTransparent text generator and style tool
Preview semi-transparent lettering and copy the RGBA CSS needed to reproduce it.
Open toolMatrix addition and subtraction calculator
Combine matching matrix entries and see the exact sum or difference.
Open calculatorMatrix multiplication calculator
Multiply compatible matrices with exact entries and a row-by-column worked example.
Open calculatorMatrix determinant calculator
Find the exact determinant of a square matrix and follow the elimination steps.
Open calculatorMatrix inverse calculator
Invert a square matrix using exact row operations, or see why no inverse exists.
Open calculatorMatrix RREF and rank calculator
Reduce a rectangular matrix exactly and identify its rank, nullity and pivot columns.
Open calculatorLinear system solver
Solve small rational linear systems and distinguish unique, inconsistent and free-variable cases.
Open calculatorSavings goal calculator
Work backward from a target balance to a regular monthly saving amount.
Open calculatorEffective annual rate calculator
Convert a nominal annual rate and compounding frequency into an effective annual rate.
Open calculatorReal return calculator
Adjust a nominal return for inflation using growth factors, with the subtraction approximation alongside.
Open calculatorDebt-to-income ratio calculator
Compare monthly debt payments with gross monthly income without assuming a lender’s approval threshold.
Open calculatorLoan payment budget calculator
Estimate the loan principal supported by a chosen monthly payment, rate and repayment term.
Open calculatorFixed-coupon bond price calculator
Discount a regular bond’s coupon payments and principal to estimate its model price.
Open calculatorPoisson distribution calculator
Find exact-count and cumulative probabilities for events in a fixed interval.
Open calculatorHypergeometric probability calculator
Calculate an exact success-count probability for sampling without replacement.
Open calculatorGeometric distribution calculator
Find when the first success occurs in independent trials with a constant probability.
Open calculatorNormal distribution probability calculator
Find the normal area between two bounds and in the tails outside them.
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