MathIsimple
Math Calculators

Math Calculators Hub

Comprehensive collection of math calculators for all subjects. Solve problems with step-by-step solutions and interactive tools.

100% FreeStep-by-step SolutionsInteractive Tools

Free Online Calculators

Popular math calculators with step-by-step solutions - completely free to use

Creatinine Clearance Calculator
Medical
Estimate kidney function using the Cockcroft–Gault equation with unit toggles and BMI note.

SEO Keywords:

creatinine clearance calculator
Cockcroft-Gault equation
kidney function test
renal dosing
eGFR
Board Footage Calculator
Woodworking
Calculate lumber volume in board feet for woodworking projects. Supports thickness formats like 4/4 and unit toggles.

SEO Keywords:

board footage calculator
calculate board feet
lumber board feet
woodworking calculator
Radical Calculator
Popular
Simplify square roots, cube roots, and nth roots with step-by-step solutions using prime factorization.

SEO Keywords:

radical calculator
nth root
square root
cube root
simplify radicals
Percentage Change Calculator
Finance
Calculate percentage increase or decrease between two values with step-by-step explanations and real-world examples.

SEO Keywords:

percentage change
percentage increase
percentage decrease
finance calculator
CD Calculator
Finance
Calculate Certificate of Deposit returns with compound interest, tax considerations, and detailed year-by-year breakdown.

SEO Keywords:

cd calculator
certificate of deposit
compound interest
investment calculator
cd returns
Square Root Calculator
Math
Calculate square roots of positive, negative, or zero values with manual calculation methods and complex number support.

SEO Keywords:

square root calculator
sqrt calculator
square root solver
manual calculation methods
complex numbers
Log Calculator
Math
Compute logarithms with any base: natural log (ln), common log (log₁₀), and custom base with change-of-base steps.

SEO Keywords:

log calculator
logarithm calculator
natural logarithm
ln calculator
log10 calculator
change of base
MAP Calculator
Medical
Calculate Mean Arterial Pressure to assess organ perfusion and circulatory stability. Essential for medical professionals.

SEO Keywords:

MAP calculator
mean arterial pressure
blood pressure calculator
organ perfusion
medical calculator
clinical tool
Factoring Calculator
Algebra
Factor polynomials using GCF, difference of squares, and more with step-by-step solutions for algebra students.

SEO Keywords:

factoring calculator
polynomial factoring
gcf factoring
quadratic factoring
algebra calculator
Fraction to Decimal Calculator
Education
Convert fractions to decimals with detailed long division steps. Supports proper, improper, and mixed fractions.

SEO Keywords:

fraction to decimal
convert fractions
long division
decimal conversion
GPA Calculator
Education
Calculate college Grade Point Average with support for multiple courses, different grading systems, and credit hours.

SEO Keywords:

gpa calculator
grade point average
college gpa
academic performance
grading systems
Steps to Miles Calculator
Fitness
Convert steps to miles or miles to steps based on your height, gender, and pace. Includes calorie tracking.

SEO Keywords:

steps to miles
fitness tracker
walking distance
calories burned
Pet Age Calculator
Pets
Convert your dog's or cat's age to human years with breed-specific calculations and care recommendations.

SEO Keywords:

pet age calculator
dog years
cat years
pet care
animal age
VO₂ Max Calculator
Fitness
Calculate your maximum oxygen uptake using multiple testing methods. Assess cardiovascular fitness with detailed analysis.

SEO Keywords:

VO2 max calculator
aerobic fitness
cardiovascular health
fitness assessment
RREF Calculator
Math
Convert matrices to Reduced Row Echelon Form with step-by-step row operations. Perfect for linear algebra.

SEO Keywords:

RREF calculator
matrix calculator
linear algebra
row operations
gaussian elimination
PFT/CFT Calculator
Military
Calculate Marine Corps Physical Fitness Test and Combat Fitness Test scores with official USMC standards.

SEO Keywords:

PFT calculator
CFT calculator
Marine Corps fitness
military fitness test
USMC standards
RVU Calculator
Medical
Calculate Work RVUs for medical services using CPT codes. Essential for medical billing and physician compensation.

SEO Keywords:

RVU calculator
work RVU
medical billing
CPT codes
physician compensation
BAH Calculator
Military
Calculate Basic Allowance for Housing for US military personnel with historical data and location-based rates.

SEO Keywords:

BAH calculator
Basic Allowance Housing
military housing
military benefits
BAH rates
BSA/BMI Calculator
Health
Calculate Body Surface Area and Body Mass Index with multiple formulas. Essential for health assessment and medical dosing.

SEO Keywords:

BSA calculator
BMI calculator
body surface area
body mass index
health assessment
Puppy Weight Calculator
Pets
Predict your puppy's adult weight and track healthy growth development with breed-specific recommendations.

SEO Keywords:

puppy weight calculator
dog growth predictor
puppy development
pet care
dog breeding
Modulo Calculator
Programming
Calculate modulo operations (a mod b) with step-by-step explanations. Perfect for programming and mathematics.

SEO Keywords:

modulo calculator
mod calculator
remainder calculator
programming math
modular arithmetic
eGFR Calculator
Medical
Calculate estimated Glomerular Filtration Rate to assess kidney function using CKD-EPI and MDRD formulas.

SEO Keywords:

eGFR calculator
kidney function
creatinine calculator
renal function
nephrology
eAG/A1C Calculator
Diabetes
Convert between estimated Average Glucose and Hemoglobin A1C with diabetes management guidelines.

SEO Keywords:

eAG calculator
A1C calculator
blood sugar
diabetes management
glucose monitoring
Peptide Calculator
Medical
Calculate precise peptide reconstitution ratios, dosing, and syringe measurements with visual syringe guide and safety information.

SEO Keywords:

peptide calculator
peptide dosing
reconstitution calculator
syringe dosing
peptide preparation
Significant Figures Calculator
Science
Calculate complex expressions and apply significant figures rules automatically with step-by-step explanations.

SEO Keywords:

significant figures
sig figs
scientific notation
lab calculations
chemistry
Weight Loss Calculator
Health
Plan your weight loss journey by target date with personalized calorie and exercise recommendations.

SEO Keywords:

weight loss
calorie deficit
BMR calculator
diet planning
fitness goals
Bra Size Calculator
Lifestyle
Calculate precise bra sizes with international conversions (US/UK/EU/AU). Includes measurement guide and fitting tips.

SEO Keywords:

bra size calculator
bra sizing guide
international bra sizes
bra fitting
lingerie sizing
HELOC Calculator
Finance
Calculate your Home Equity Line of Credit potential with property value analysis and approval estimates.

SEO Keywords:

heloc calculator
home equity line of credit
heloc estimate
property equity
home loan calculator
Pythagorean Theorem Calculator
Geometry
Solve right triangle problems using a² + b² = c² with step-by-step solutions and visual triangles.

SEO Keywords:

pythagorean theorem calculator
right triangle calculator
triangle side calculator
geometry calculator
pythagorean formula
Chronological Age Calculator
Utility
Calculate precise age from birth date to any target date with detailed breakdown in years, months, days, hours.

SEO Keywords:

chronological age calculator
age calculator
exact age calculator
age in days
birth date calculator
Discount Calculator
Shopping
Calculate sale prices and total savings with percentage discounts, coupons, and bulk purchases for smart shopping.

SEO Keywords:

discount calculator
sale price calculator
savings calculator
coupon calculator
shopping calculator
Rounding Numbers Calculator
Math
Round numbers to any decimal place using different methods (round half up, ceiling, floor, truncate) with explanations.

SEO Keywords:

rounding calculator
round numbers calculator
decimal rounding
rounding methods
math rounding
Dividend Calculator
Investment
Calculate dividend income projections with DRIP reinvestment, tax considerations, and year-by-year portfolio growth analysis.

SEO Keywords:

dividend calculator
dividend income calculator
drip calculator
investment calculator
passive income
30-60-90 Triangle Calculator
Geometry
Solve 30-60-90 special right triangles using the 1:√3:2 ratio with step-by-step solutions and visual diagrams.

SEO Keywords:

30-60-90 triangle calculator
30 60 90 triangle
special right triangle
triangle solver
geometry calculator
45-45-90 Triangle Calculator
Geometry
Solve 45-45-90 isosceles right triangles using the 1:1:√2 ratio with detailed explanations and visual aids.

SEO Keywords:

45-45-90 triangle calculator
45 45 90 triangle
isosceles right triangle
triangle calculator
geometry solver
Number Sequence Calculator
Math
Calculate arithmetic, geometric, and Fibonacci sequences. Find nth terms and sums with detailed explanations.

SEO Keywords:

number sequence
arithmetic sequence
geometric sequence
fibonacci
series calculator
Ideal Gas Law Calculator
Chemistry
Calculate pressure, volume, temperature, or amount using the ideal gas law (PV=nRT) with unit conversions.

SEO Keywords:

ideal gas law
PV=nRT
gas calculator
chemistry calculator
thermodynamics
Conduit Fill Calculator
Electrical
Check wire fill percentage in electrical conduits for NEC and utility compliance with safety recommendations.

SEO Keywords:

conduit fill
electrical code
NEC compliance
wire fill
electrical safety
Wire Size Calculator
Electrical
Calculate minimum wire gauge (AWG) based on voltage drop, current, and distance for electrical installations.

SEO Keywords:

wire size
wire gauge
voltage drop
electrical wiring
AWG calculator
Cross Product Calculator
Math
Compute 3D vector cross product with step-by-step determinant expansion, magnitude, and right-hand rule direction.

SEO Keywords:

cross product calculator
3D vector cross product
vector cross product
determinant method
right-hand rule
Gravel Calculator
Construction
Estimate gravel volume, weight, and cost for driveways, paths, and landscaping projects based on area, depth, and gravel type.

SEO Keywords:

gravel calculator
gravel volume calculator
how much gravel do I need
calculate gravel for driveway
gravel cost estimator
landscaping calculator
construction calculator
Eigenvalue Calculator
Linear Algebra
Compute eigenvalues of square matrices (2×2, 3×3, or larger) with step-by-step explanations and characteristic polynomial solving.

SEO Keywords:

eigenvalue calculator
matrix eigenvalues
characteristic equation
linear algebra calculator
eigenvalue definition
2x2 eigenvalues
3x3 eigenvalues
characteristic polynomial
QR algorithm
determinant
Stair Calculator
Construction
Design safe, code-compliant stairs with step-by-step calculations. Calculate rise, run, stringer length, and angle with US building code compliance checks.

SEO Keywords:

stair calculator
stair dimensions calculator
stringer length calculator
stair rise run calculator
building code stairs
stair design calculator
step calculator
stair building calculator
deck stairs calculator
stair angle calculator
Boat Loan Calculator
Finance
Calculate monthly boat loan payments, total interest, and affordability. Get pre-qualified for marine financing with expert guidance.

SEO Keywords:

boat loan calculator
marine financing calculator
monthly boat payment
boat loan rates
marine loan calculator
boat financing calculator
yacht loan calculator
boat payment calculator
marine financing rates
boat loan terms
ABV Calculator
Brewing
Calculate alcohol by volume (ABV) for beer, wine, or mead using original/final gravity readings. Includes gravity conversion and brewing science education.

SEO Keywords:

ABV calculator
alcohol by volume calculator
specific gravity to ABV
homebrew ABV
Plato to SG
beer calories calculator
brewing calculator
craft beer ABV
mead ABV
wine ABV
fermentation calculator
brewing science
hydrometer reading
gravity conversion
brewing formulas
attenuation calculator
beer recipe calculator

Calculator Categories

Browse calculators by mathematical subject and topic

Geometry Calculators
25+ calculators
Comprehensive collection of geometry tools for shapes, areas, perimeters, and geometric relationships

Available Tools:

  • Triangle calculators (area, sine/cosine law)
  • Circle & sector calculators
  • Quadrilateral tools (rectangle, square, parallelogram)
  • Vector operations & dot products
  • Trigonometry function calculators
Statistics Calculators
2+ calculators
Data analysis and probability tools for descriptive statistics, distribution analysis, and statistical inference

Available Tools:

  • Descriptive statistics (mean, variance, std dev)
  • Distribution transformation tools
  • Statistical measures & interpretation
  • More advanced tools coming soon

🧮 Popular Calculator Categories

Quick access to the most commonly used mathematical calculators

Triangle Tools

Area, laws, angles

Basic Shapes

Circles, rectangles, squares

Vector Math

Operations, dot products

Statistics

Data analysis tools

Explore other math resources

Learning CenterPractice Exercises