All Calculators

Every CalculatorPlus tool, grouped by category. Each one shows the formula it uses, a worked example, and — where a rate or bracket is involved — the authoritative source and the date we last checked it.

Construction & Materials

Cubic Yard Calculator
Acres Per Hour Calculator
Asphalt Calculator
Dirt Calculator
Sand Calculator
Concrete Block Calculator
Firewood Cord Calculator
Sod Calculator
Wainscoting Calculator
Cubic Feet Calculator
Fence Calculator
Roof Truss Calculator
Yard Calculator (Length Converter)

Finance & Money

Reverse Sales Tax Calculator
Break-Even Calculator
ROAS Calculator
Doubling Time Calculator
Basis Points (BPS) Calculator
Prorate Calculator
Stock Profit Calculator
Out the Door Price Calculator
Connecticut Mortgage Calculator (CT)
MIRR Calculator
Mobile Home Loan Calculator
Retirement Calculator (Ramsey-Style 12%/4%)
Barista FIRE Calculator
Divorce House Buyout Calculator
Savings Bond Calculator (I & EE Bonds)
IUL Calculator (Illustrative)
Diminished Value Calculator (17c)
Enterprise SEO ROI Calculator
Productivity Calculator (Output per Hour)

Algebra & Math

RREF Calculator
Discriminant Calculator
Perimeter Calculator
Simplify Radical Calculator
Complex Number Calculator
Elimination Calculator (2×2 System)
Diagonal Calculator
Special Right Triangles Calculator
Common Denominator Calculator
Distributive Property Calculator
Octagon Calculator
Centroid Calculator (Triangle)
Reflection Calculator (Coordinate)
Dilation Calculator (Coordinate)
Percentage Decrease Calculator
Sum Calculator
Zeros of a Function Calculator
Simplify Calculator
Polynomial Calculator
Factor by Grouping Calculator
Rational Expressions Calculator
Quotient Rule Calculator
Trig Identities Calculator
Inequality Calculator (Linear)
Graphing Inequalities Calculator
Logarithm Calculator
Factorial Calculator
GCD Calculator
LCM Calculator
Fraction Calculator
Prime Number Calculator
Significant Figures Calculator
Scientific Notation Calculator
Matrix Determinant Calculator
Matrix Inverse Calculator
Quadratic Equation Calculator
System of Equations Calculator

Health & Medical

mg to mL Calculator
IV Drip Rate Calculator
Maintenance Fluid Calculator (Holliday-Segar)
Tidal Volume Calculator
Steps to Miles Calculator
Caffeine Half-Life Calculator
Dog Chocolate Toxicity Calculator
ABG Interpreter Calculator
Vancomycin Dosing Calculator (Student Reference)
Breastfeeding Calorie Calculator
Intermittent Fasting Calculator
Contact Lens Vertex Calculator
Odds of Having Twins Calculator
Miscarriage Risk by Week Calculator
Ovulation Calculator
Ideal Body Weight Calculator
Lean Body Mass Calculator
Pregnancy Due Date Calculator

Legal & Insurance

Bridge Loan Calculator
Seller Financing Calculator
Oklahoma Tag, Title & Tax Calculator
Car Accident Settlement Calculator
Nevada Child Support Calculator
Illinois Child Support Calculator (Income Shares)
Indiana Child Support Calculator (Income Shares)
Illinois Estate Tax Calculator
Statute of Limitations Calculator
Court Fee Calculator
Alimony Calculator
Small Claims Calculator

Calculus & Symbolic Math

Partial Derivative Calculator
L'Hôpital's Rule Calculator
Mean Value Theorem Calculator
Inflection Point Calculator
Simpson's Rule Calculator
Laplace Transform Calculator
LU Factorization Calculator

Sports & Hobbies

Arrow Speed Calculator
Point Buy Calculator
ERA Calculator (Earned Run Average)
Fantasy Football Points Calculator
Snowboard Size Calculator
Golden Ratio Face Calculator (Just for Fun)
Heart Rate Zones Calculator
Running Pace Calculator
Swing Weight Calculator

Physics & Engineering

Battery Life Calculator
Moment of Inertia Calculator
Potential Energy Calculator
Center of Mass Calculator
Power-to-Weight Ratio Calculator
Horsepower Calculator

Biology & Genetics

Punnett Square Calculator
Blood Type Calculator
Baby Eye Color Calculator (Estimate)
Population Growth Calculator
Hardy-Weinberg Calculator
Allele Frequency Calculator
Dihybrid Cross Calculator
Cell Doubling Time Calculator
GC Content Calculator

Statistics & Probability

Linear Regression Calculator
Inverse Normal (InvNorm) Calculator
Sample Variance Calculator
Poisson Distribution Calculator
Standard Deviation Calculator
Z-Score Calculator
Mean, Median, Mode Calculator
Confidence Interval Calculator
Permutation and Combination Calculator

Automotive & Racing

Quarter Mile Calculator
Gear Ratio Calculator
Engine Displacement Calculator
Tire Size Calculator
Fuel Cost Calculator
Trip Fuel Cost Calculator

Chemistry

pH Calculator
Enthalpy (Heat) Calculator
PPM Calculator (Parts Per Million)
Molarity Calculator
Dilution Calculator
Ideal Gas Law Calculator
Percent Yield Calculator
Molar Mass Calculator

Sewing & Crafts

Subwoofer Box Calculator
Thread Calculator
Circle Skirt Calculator
Fabric Calculator
Knitting Gauge Calculator
Yarn Calculator
Quilt Calculator

Education & Academic

Middle School GPA Calculator (No Credits)
Semester GPA Calculator (With Credits)
Square Root Curve Calculator
College GPA Calculator
Cumulative GPA Calculator
Final Grade Calculator
Grade Calculator
Weighted Grade Calculator

Food & Baking

Sourdough Hydration Calculator
Cooking Measurement Converter
Oven Temperature Converter
Recipe Scaler
Cooking Time Calculator

Lifestyle & Misc

Anniversary Calculator
Date Duration Calculator

PDF Tools

PDF Merger
PDF Splitter
PDF Compressor
PDF to Word Converter
PDF to JPG Converter
PDF Page Rotator
PDF Password Remover

Image & Photo Tools

Image Resizer
Image Compressor
Format Converter
Pixel Art Resizer
Image to Base64 Converter

SEO & Web Content

Meta Tag Extractor
Keyword Density Analyzer
Robots.txt Generator
Schema Markup Generator

Screen & Recording

Screen Recorder
Webcam + Screen Recorder
GIF Maker
Voice Recorder

File & Data Converters

Audio Converter
ZIP Creator
CSV to JSON Converter
HTML Minifier

Daily Calculators

Tip Calculator
Age Calculator
30-Minute Lunch Break Calculator
Gas Mileage Calculator
Electricity Cost Calculator
Water Intake Calculator
Sleep Calculator
Loan Calculator
Savings Calculator
BMI Calculator
Currency Converter
Percentage Calculator
Unit Converter
PAYE Tax Calculator
Hourly Wage Calculator
Meal Calorie Calculator
Weekly Pay Calculator

Looking for a different calculator?

CalculatorPlus has free tools across finance, construction, math, health and more — each one showing the formula and a worked example.

Browse All Calculators How We Check Accuracy