Visual calculators that help you understand math

Everyday & Practical

⇄

Unit Converter

Visual unit conversion

÷$

Tip & Bill Splitter

Split bills and tips instantly

↓%

Discount Calculator

See how much you save

d=rt

Speed / Distance / Time

D = R × T solved visually

age

Age Calculator

Exact age from any date

Δd

Date Difference

Days between any two dates

BMI

BMI Calculator

BMI with health-zone gauge

⛽

Fuel Cost Calculator

Trip fuel cost visualized

⏱

Pace Calculator

Pace / distance / time solver

zzz

Sleep Calculator

Wake up between sleep cycles

Finance & Money

A=Pe

Compound Interest

Watch your money grow

$/mo

Loan Calculator

Monthly payments visualized

goal

Savings Goal

Time to reach your goal

ROI

ROI Calculator

Investment return visualized

BE

Break-Even Calculator

Cost vs. revenue crossover

Math & Algebra

+-×÷

Basic Calculator

Arithmetic operations visualized

A:B

Rule of Three

Proportion solving made visual

%

Percentage Calculator

Percentage calculations visualized

sin

Trigonometry

Interactive unit circle

½

Fractions

Fraction arithmetic visualized

GCD

GCD / LCM

Factor visualization

xⁿ

Exponents & Roots

Powers and roots visualized

log

Logarithms

Interactive log curve

σ

Statistics

Data visualization and stats

ax²

Quadratic Formula

Roots on a live parabola

y=mx

Linear Equation / Slope

Line equation with graph

0b

Number Base Converter

Binary, hex, octal converter

nCr

Combinations & Permutations

nCr and nPr visualized

p×q

Prime Factorization

Factor tree visualized

aₙ

Sequences Calculator

Arithmetic & geometric sequences

XIV

Roman Numeral Converter

Decimal ↔ Roman numerals

sig

Significant Figures

Sig figs identified & rounded

[M]

Matrix Calculator

Matrix operations step-by-step

Geometry & Shapes

△

Triangle Solver

Visual triangle solving

○

Circle Calculator

Circle measurements visualized

□A

Area & Perimeter

Shape area & perimeter

V³

Volume Calculator

3D shape volume & surface area

c²

Pythagorean Theorem

Right triangle solver

(x,y)

Coordinate Distance & Midpoint

Distance & midpoint on a grid

⬡

Regular Polygon Calculator

Any regular polygon

Science & Physics

V=IR

Ohm's Law

V = I × R visualized

v=at

Kinematics Calculator

Motion equations visualized

ρ

Density Calculator

Mass, volume, density

F=ma

Newton's Second Law

F = m × a visualized

½N

Half-Life Calculator

Radioactive decay curve

PV

Ideal Gas Law

PV = nRT with piston visual

Tech & Digital

↓⏱

Download Time Calculator

How long will it take?

KB↔

File Size Converter

Bytes ↔ KB ↔ MB ↔ GB ↔ TB

RGB

Color Code Converter

HEX ↔ RGB ↔ HSL ↔ HSV

16:9

Aspect Ratio Calculator

Scale & reduce dimensions

PPI

Screen PPI Calculator

Pixels per inch from resolution

bits

Password Entropy

Password strength in bits

Unit Converters

°C→°F

Celsius to Fahrenheit

°C to °F converter

mm→in

mm to Inches

mm to in converter

in→ft

Inches to Feet

in to ft converter

yd→m

Yards to Meters

yd to m converter

ft→cm

Feet to cm

ft to cm converter

kg→lbs

kg to lbs

kg to lbs converter

lbs→kg

lbs to kg

lbs to kg converter

oz→g

Ounces to Grams

oz to g converter

g→oz

Grams to Ounces

g to oz converter

kg→st

kg to Stone

kg to st converter

t→kg

Tons to kg

t to kg converter

mg→g

mg to Grams

mg to g converter

lbs→oz

Pounds to Ounces

lbs to oz converter

GB→MB

GB to MB

GB to MB converter

MB→GB

MB to GB

MB to GB converter

TB→GB

TB to GB

TB to GB converter

Mb→MB

Mbps to MB/s

Mbps to MB/s converter

MB→Mb

MB/s to Mbps

MB/s to Mbps converter

Gb→Mb

Gbps to Mbps

Gbps to Mbps converter

KB→MB

KB to MB

KB to MB converter

Kb→Mb

Kbps to Mbps

Kbps to Mbps converter

MB→KB

MB to KB

MB to KB converter

GB→TB

GB to TB

GB to TB converter

L→gal

Liters to Gallons

L to gal converter

gal→L

Gallons to Liters

gal to L converter

mL→oz

mL to Fluid Ounces

mL to fl oz converter

cup→mL

Cups to mL

cup to mL converter

pt→L

Pints to Liters

pt to L converter

qt→L

Quarts to Liters

qt to L converter

T→mL

Tablespoons to mL

tbsp to mL converter

t→mL

Teaspoons to mL

tsp to mL converter

L→cup

Liters to Cups

L to cup converter

m³→L

Cubic Meters to Liters

m³ to L converter

km/h→mph

km/h to mph

km/h to mph converter

mph→km/h

mph to km/h

mph to km/h converter

km/h→m/s

km/h to m/s

km/h to m/s converter

kn→km/h

Knots to km/h

kn to km/h converter

kn→mph

Knots to mph

kn to mph converter

m²→ft²

Square Meters to Square Feet

m² to ft² converter

ft²→m²

Square Feet to Square Meters

ft² to m² converter

ac→ha

Acres to Hectares

ac to ha converter

ha→ac

Hectares to Acres

ha to ac converter

m²→ac

Square Meters to Acres

m² to ac converter

km²→mi²

Square km to Square Miles

km² to mi² converter

cup→g

Cups to Grams

cup to g converter

g→cup

Grams to Cups

g to cup converter

oz→mL

Fluid Ounces to mL

fl oz to mL converter

T→tsp

Tablespoons to Teaspoons

tbsp to tsp converter

mL→cup

mL to Cups

mL to cup converter

mpg→L

MPG to L/100km

MPG to L/100km converter

L→mpg

L/100km to MPG

L/100km to MPG converter

km/L→mpg

km/L to MPG

km/L to MPG converter

W→kW

Watts to Kilowatts

W to kW converter

hp→W

Horsepower to Watts

hp to W converter

kWh→J

kWh to Joules

kWh to J converter

J→cal

Joules to Calories

J to cal converter

cal→J

Calories to Joules

cal to J converter

BTU→J

BTU to Joules

BTU to J converter

W→hp

Watts to Horsepower

W to hp converter

kcal→kJ

kcal to kJ

kcal to kJ converter

PSI→bar

PSI to Bar

PSI to bar converter

bar→PSI

Bar to PSI

bar to PSI converter

atm→PSI

atm to PSI

atm to PSI converter

Pa→atm

Pascals to atm

Pa to atm converter

mmHg→atm

mmHg to atm

mmHg to atm converter

hr→min

Hours to Minutes

hr to min converter

min→hr

Minutes to Hours

min to hr converter

d→hr

Days to Hours

day to hr converter

s→min

Seconds to Minutes

sec to min converter

wk→d

Weeks to Days

wk to day converter

px→rem

px to rem

px to rem converter

px→em

px to em

px to em converter

px→pt

px to pt

px to pt converter

A→mA

Amps to Milliamps

A to mA converter

kWh→Wh

kWh to Wh

kWh to Wh converter