Math & numbers
184 all tools.
2
- 2D distance between pointsmath · dist2d
- 2D dot productmath · math-vector-dot-product
- 2D vector magnitude squaredmath · math-vector-magnitude-squared
- 2×2 matrix determinantmath · det2
A
- Absolute errormath · math-absolute-error-calc
- Acceleration (Δv/Δt)math · acceleration-calculator
- Annulus (ring) area calculatormath · annulus-area-calculator
- Area under parabola y=ax² (0 to x)math · parabolic-area-under
- Arithmetic sequence nth termmath · arithmetic-sequence-nth
- Average of three numbersmath · average-three-numbers
- Average of two numbersmath · average-two-numbers
- Average velocity (distance/time)math · velocity-from-distance
C
- Capacitor energy (½CV²)math · capacitor-energy
- Capsule volume calculatormath · capsule-volume-calculator
- Central angle from arc ratiomath · math-central-angle-arc
- CI half-width scalemath · confidence-interval-half-width
- Circle arc length calculatormath · arc-length-calculator
- Circle area calculatormath · circle_area
- Circle area from diametermath · math-circle-from-diameter
- Circle area from radiusmath · circle_area
- Circle chord length calculatormath · chord-length-calculator
- Circle circumference calculatormath · circumference-calculator
- Circle sector area calculatormath · circle-sector-area
- Circular segment area (approx)math · sector-segment-area
- Coefficient of variation pctmath · statistics-coefficient-of-variation
- Combinations nCk scalemath · math-combination-nck
- Combinations nCrmath · ncr
- Complementary anglemath · math-complementary-angles
- Compound growth ratepercent · cagr
- Cone slant height squared (r²+h²)math · math-cone-slant-height-squared
- Cone surface area (base + lateral)math · surface-area-cone
- Cone volume calculatormath · cone-volume-calculator
- Convert annual rate to monthlymath · annual-to-monthly-rate
- Convert monthly rate to annualmath · monthly-to-annual-rate
- Covariance scale xymath · correlation-scale
- Cube a numbermath · cube-number-calculator
- Cube space diagonalmath · cube-diagonal-length
- Cube surface area calculatormath · surface-area-cube
- Cube volume calculatormath · cube-volume-calculator
- Cuboid surface area calculatormath · surface-area-cuboid
- Cuboid volume calculatormath · cuboid-volume-calculator
- Cylinder lateral surface areamath · lateral-surface-cylinder
- Cylinder surface area calculatormath · surface-area-cylinder
- Cylinder volume calculatormath · cylinder-volume-calculator
D
- Decimal to fractionmath · dec_frac
- Decimal to percentpercent · dec_to_pct
- Decrease X by Y%percent · pct_decrease
- Density from mass and volumemath · density-mass-volume
- Difference of two numbersmath · difference-two-numbers
- Direct variation constant kmath · math-direct-variation-k
- Discount price calculatorpercent · discount
- Distance squared 2Dmath · math-distance-two-points
E
- Electrical power (V × I)math · ohms-power-calculator
- Ellipse area calculatormath · ellipse-area-calculator
- Equilateral triangle areamath · equilateral-triangle-area
- Exponent calculatormath · exp
- Exterior angle regular n-gonmath · math-exterior-angle-polygon
F
- Factorial calculatormath · factorial
- Force calculator (F = ma)math · force-calculator-f-ma
- Fraction add/subtract/multiply/dividemath · fraction
- Fraction to decimalmath · frac_dec
- Fraction to percentpercent · frac_to_pct
G
- Geometric mean of three numbersmath · math-geometric-mean-three
- Geometric mean of two numbersmath · geometric-mean-two
- Geometric sequence nth termmath · geometric-sequence-nth
- Golden ratio φ segmentmath · golden-ratio-calculator
- Gravitational potential energy (mgh)math · potential-energy-calculator
- Greatest common divisor (GCD)math · gcd
H
- Half cylinder volumemath · volume-half-cylinder
- Harmonic mean of three numbersmath · math-harmonic-mean-three
- Harmonic mean of two numbersmath · harmonic-mean-two
- Heat energy Q=mcΔTmath · heat-q-mc-delta-t
- Hemisphere surface including basemath · surface-area-hemisphere
- Hemisphere volume calculatormath · hemisphere-volume-calculator
- Hollow cylinder volumemath · cylindrical-shell-volume
I
- Ideal gas law PV=nRT (solve P)math · ideal-gas-law-pv
- Increase X by Y%percent · pct_increase
- Interior angle regular n-gonmath · math-interior-angle-polygon
- Inverse variation kmath · math-inverse-variation-k
- Isosceles triangle areamath · isosceles-triangle-area
J
K
- Kinetic energy (½mv²)math · kinetic-energy-calculator-mv
- Kite area from diagonalsmath · kite-area-diagonals
L
- Lateral surface rectangular prismmath · lateral-area-prism-rect
- Law of cosines c squaredmath · math-law-of-cosines-c-squared
- LCM from GCD and productmath · math-lcm-from-gcd
- Least common multiple (LCM)math · lcm
- Line slope from two pointsmath · slope
- Linear equation solver 2×2math · linear2
- Log base change scalemath · math-log-base-change
- Logarithm calculatormath · log
M
- Markup percentage calculatorpercent · markup
- Mean absolute deviation scalemath · statistics-mean-absolute-deviation
- Mean of four valuesmath · math-arithmetic-mean-four
- Mean, median, mode calculatormath · mmm
- Midpoint X coordinatemath · midpoint-x-calculator
- Midpoint Y coordinatemath · midpoint-y-calculator
- Modulo calculatormath · mod
- Modulo operation calculatormath · mod
- Momentum calculator (p = mv)math · momentum-calculator
N
P
- Parabola vertex y-coordinatemath · vertex-parabola-y
- Parallel resistance (two resistors)math · resistance-parallel
- Parallelogram area calculatormath · parallelogram-area-calculator
- Pentagon diagonal scalemath · math-pentagon-diagonal
- Percent difference two valuesmath · math-percent-difference-two
- Percent error calculatorpercent · percent_error
- Percent to decimalpercent · pct_to_dec
- Percent to fractionpercent · pct_to_frac
- Percentage change from X to Ypercent · pct_change
- Percentile rank two valuesmath · percentile-rank-simple
- Permutations nPk partialmath · math-permutation-npk
- Permutations nPrmath · npr
- Permutations nPr calculatormath · npr
- Photon energy E=hfmath · photon-energy
- Power calculator (P = W/t)math · power-calculator
- Pressure calculator (P = F/A)math · pressure-calculator
- Prime factorizationmath · prime_factors
- Prime number checkermath · is_prime
- Product of two numbersmath · product-two-numbers
- Profit margin calculatorpercent · margin
- Pythagorean theorem calculatormath · pythag
Q
- Quadratic discriminant b2-4acmath · quadratic-discriminant
- Quadratic equation solvermath · quadratic
- Quotient of two numbersmath · quotient-two-numbers
R
- Range of four valuesmath · math-range-four-values
- Ratio calculatormath · ratio
- Ratio simplifierpercent · ratio_simplify
- Reciprocal (1/x)math · reciprocal-calculator
- Rectangle perimetermath · rectangle-perimeter
- Regression slope xymath · linear-regression-slope
- Regular hexagon apothemmath · math-hexagon-apothem
- Regular hexagon areamath · area-regular-hexagon
- Regular octagon area from sidemath · octagon-area-side
- Regular pentagon area from sidemath · pentagon-area-side
- Regular polygon interior anglemath · math-polygon-interior-angle
- Relative error percentmath · math-percent-error-relative
- Round numbers (decimal places)math · round
- Round to decimal placesmath · round_dec
- Rounding uncertainty scalemath · math-sig-figs-rounding-scale
- Rule of three (proportion)percent · rule_three
S
- Sales tax calculatorpercent · sales_tax
- Sample size for proportionmath · statistics-sample-size-proportion
- Scale factor area ratiomath · math-scale-factor-enlargement
- Scientific calculatormath · scientific
- Series resistance totalmath · resistance-series
- Simplify fractionsmath · frac_simplify
- Slope from two pointsmath · math-slope-from-two-points
- Snell's law n1 sinθ1 = n2 sinθ2 (output ratio)math · snells-law-ratio
- Sphere surface area calculatormath · surface-area-sphere
- Sphere volume calculatormath · sphere_vol
- Sphere volume from diametermath · math-sphere-from-diameter
- Sphere volume from radiusmath · sphere_vol
- Spherical cap volumemath · sphere-cap-volume
- Square a numbermath · square-number-calculator
- Square area calculatormath · square-area-calculator
- Square diagonal lengthmath · square-diagonal-length
- Square pyramid volume calculatormath · pyramid-volume-calculator
- Standard deviation (two-value sample)math · stddev2
- Standard deviation calculatormath · stddev
- Sum of two numbersmath · sum-two-numbers
- Supplementary anglemath · math-supplementary-angles
T
- Torus surface areamath · torus-surface-area
- Torus volume calculatormath · torus-volume-calculator
- Trapezoid area calculatormath · trapezoid-area-calculator
- Triangle area (base×height/2)math · tri_area
- Triangle area base times heightmath · tri_area
- Triangular prism volume calculatormath · prism-volume-calculator
- Truncated cone volumemath · frustum-cone-volume
U
V
- Variance calculatormath · variance
- VAT add/remove calculatorpercent · vat
- Voltage drop IRmath · voltage-drop-resistance
- Volume scale factormath · math-volume-scale-factor
- Volumetric flow rate (Q=Av)math · flow-rate-calculator
W
- Wave speed (f × λ)math · frequency-wavelength-speed
- Wavelength from frequency (c/f)math · wavelength-from-frequency
- Weighted grade calculatorpercent · grade
- Weighted mean two valuesmath · math-weighted-mean-two
- What is X% of Ypercent · percent_of
- What percent is part of totalmath · percentage-of-total
- Work calculator (W = Fd)math · work-calculator