Free Online Calculators

From BMI to loans, tips to age — instant calculations at your fingertips.

327 Calculators 16 Categories 100% Free

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Net Present Value (NPV) Calculator

#1

Calculate the Net Present Value of an investment based on initial investment, annual cash flow, discount rate, and number of years.

Financial Calculators 4 variants

One Rep Max (1RM) Calculator

Estimate your one-repetition maximum (1RM) using the Epley formula.

Sports & Performance 5 variants

Pond Liner Size Calculator

Estimate the required liner area for a rectangular pond including depth coverage on all sides.

Construction & Home 4 variants

Sentiment Analyzer Test

Analyze the sentiment of any text using AI

Science & Engineering 0 variants

Gravel Weight Calculator

Calculate the total weight of gravel or aggregate material based on volume and material density.

Construction & Home 4 variants

Cost Per Wear Calculator

Calculate how much each wear of a clothing item costs based on its purchase price and number of times worn.

Business & Retail 4 variants
All Tools Calculators Converters Generators Makers Checkers

All Calculators

327 total
Inventory Turnover Ratio Calculator Calculates how efficiently a business sells and replaces its inventory over a sp...
Business & Retail
EN
Gordon Growth Model Calculator Estimates the intrinsic value of a stock using the Gordon Growth Model based on...
Financial Calculators
EN
Net Present Value (NPV) Calculator Calculate the Net Present Value of an investment based on initial investment, an...
Financial Calculators
EN
Pure Alcohol Content Calculator Estimates the grams of pure alcohol in a drink based on volume and alcohol perce...
Health & Fitness
EN
Beer-Lambert Law Absorbance Calculator Calculates the absorbance of a solution using the Beer-Lambert Law equation (A =...
Chemistry & Biology
EN
Centripetal (G-Force) Calculator Calculates the g-force experienced during circular motion based on velocity and...
Science & Engineering
EN
Capsule Volume Calculator Calculates the total volume of a capsule-shaped object (cylinder with two hemisp...
Math Calculators
EN
Momentum Calculator Calculate linear momentum using the classical physics formula p = m × v.
Science & Engineering
EN
Paint Job Cost Calculator Estimate the total cost of paint needed for a project based on area, coverage, a...
Construction & Home
EN
Boat Hull Speed Calculator Hull speed is the theoretical maximum speed of a displacement hull based on its...
Sports & Performance
EN
401(k) Employer Match Calculator Estimates the annual employer match contribution to a 401(k) retirement plan bas...
Financial Calculators
EN
Gross Profit Calculator Calculates total gross profit by subtracting Cost of Goods Sold (COGS) from Tota...
Business & Retail
EN