Free Online Calculators & Tools

29 free calculators and tools across 8 categories

Categories

⚖️

Legal Calculators

State-by-state legal cost and support calculators

3 tools →

💼

Business Calculators

Small business costs, LLC formation, and tax tools

2 tools →

💰

Finance Calculators

Personal finance, tax, and investment calculators

8 tools →

❤️

Health Calculators

BMI, calorie, fitness, and wellness calculators

7 tools →

🔢

Math Calculators

Percentage, fraction, and general math tools

3 tools →

🔄

Unit Converters

Length, weight, temperature, and unit conversions

3 tools →

📅

Date & Time

Age, date difference, and time calculators

2 tools →

🏠

Home & Remodel

Home improvement cost estimators

1 tool →

All Tools

Child Support Calculator

50 states

Calculate estimated child support payments based on your state's 2026 guidelines

⚖️ Legal Calculators

Alimony Calculator

50 states

Estimate alimony and spousal support payments by state for 2026

⚖️ Legal Calculators

Divorce Cost Estimator

50 states

Estimate the total cost of divorce in your state in 2026

⚖️ Legal Calculators

LLC Formation Cost

50 states

Calculate the cost to form an LLC in your state in 2026

💼 Business Calculators

Freelancer Tax Calculator

50 states

Calculate your estimated quarterly taxes as a freelancer for 2026

💼 Business Calculators

Compound Interest Calculator

Calculate compound interest on your savings and investments

💰 Finance Calculators

Mortgage Calculator

Calculate monthly mortgage payments with taxes and insurance for 2026

💰 Finance Calculators

Salary to Hourly Converter

Convert between annual salary and hourly wage

💰 Finance Calculators

Tip Calculator

Calculate tip amount, total bill, and split between any number of people

💰 Finance Calculators

Auto Loan Calculator

Calculate monthly car payments, total interest, and loan costs for 2026

💰 Finance Calculators

Debt Payoff Calculator

Plan your debt-free date using snowball or avalanche payoff strategies

💰 Finance Calculators

Tariff Impact Calculator

Estimate how much U.S. tariffs cost your household annually based on income and spending habits

💰 Finance Calculators

No Tax on Tips Calculator

Calculate your federal tax savings under the OBBBA no-tax-on-tips provision for 2025-2028

💰 Finance Calculators

BMI Calculator

Calculate your Body Mass Index (BMI) and find your healthy weight range

❤️ Health Calculators

Calorie Calculator

Calculate your daily calorie needs based on activity level

❤️ Health Calculators

Body Fat Calculator

Calculate your body fat percentage using the U.S. Navy method

❤️ Health Calculators

Pregnancy Due Date Calculator

Calculate your estimated due date based on LMP, conception, or IVF transfer date

❤️ Health Calculators

Biological Age Calculator

Estimate your biological age based on lifestyle factors backed by peer-reviewed research

❤️ Health Calculators

Screen Time Calculator

Calculate your annual screen time, lifetime projection, and what you could do instead

❤️ Health Calculators

GLP-1 Weight Loss Projector

Project weight loss with semaglutide or tirzepatide based on published clinical trial data

❤️ Health Calculators

Percentage Calculator

Calculate percentages: what is X% of Y, percentage increase/decrease

🔢 Math Calculators

Fraction Calculator

Add, subtract, multiply, and divide fractions

🔢 Math Calculators

Random Number Generator

Generate random numbers within any range

🔢 Math Calculators

Length Converter

Convert between meters, feet, inches, centimeters, and more

🔄 Unit Converters

Weight Converter

Convert between kg, lbs, oz, grams, and more

🔄 Unit Converters

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin

🔄 Unit Converters

Age Calculator

Calculate your exact age in years, months, and days

📅 Date & Time

Date Difference Calculator

Calculate the number of days between two dates

📅 Date & Time

Remodel Cost Estimator

Estimate home remodeling costs by room, quality level, and location in 2026

🏠 Home & Remodel