Math

VAT Calculator

Calculate VAT amount and price including or excluding VAT for any rate.

Finance

Simple Interest Calculator

Calculate simple interest on a principal amount for a given time period and rate.

Ecology

Electricity Cost Calculator

Calculate the electricity cost of any appliance based on wattage, daily usage hours, and t

Business

Expense to Income Ratio Calculator

Calculate your expense to income ratio to understand your financial health and spending ef

Finance

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation for accurate

Finance

CAGR Calculator

Calculate Compound Annual Growth Rate (CAGR) to measure investment growth over time.

Pregnancy

Heart Rate Zone Calculator

Calculate your 5 heart rate training zones based on your age or custom max heart rate.

Physics

Velocity Calculator

Enter the distance traveled and time taken to calculate the velocity of an object. Instant

Finance

Currency Converter

Convert between major world currencies using real-time exchange rate logic. Covers USD, EU

Math

Rule of 72 Calculator

Use the Rule of 72 to estimate how long it takes to double your money at a given interest

Math

Mortgage Affordability Calculator

Calculate the maximum home loan you can afford based on your income, expenses, and interes

Math

Freelancer Rate Calculator

Calculate your ideal hourly or daily freelance rate based on desired annual income, expens

Math

Currency Exchange Profit Calculator

Calculate profit or loss from exchanging currency at two different rates.

Random

Password Generator

Generate strong, secure random passwords with custom length and character options.

Physics

Force Calculator

Enter mass (kg) and acceleration (m/s²) to calculate the force in Newtons (N) based on New

Sports

Cricket Strike Rate Calculator

Calculate your cricket strike rate to measure how quickly a batsman scores runs based on b

Math

Currency Exchange Calculator

Convert between major world currencies using customizable exchange rates.

Finance

Macro Nutrient Calculator

Calculate daily protein, carbohydrate, and fat targets based on your calorie goal and fitn

Finance

VO2 Max Calculator

Estimate your VO2 max (maximal oxygen uptake) from a simple field test or resting heart ra

Math

NPV Calculator

Calculate Net Present Value (NPV) of an investment by entering initial cost and yearly cas

Math

Commission Calculator

Calculate sales commission, total earnings, commission rate, and net pay for any commissio

Math

Payroll Tax Calculator

Calculate gross pay, tax deductions, and net take-home pay for employees with adjustable t

Math

Profit and Loss Statement Calculator

Generate a simple profit and loss statement by entering revenue and expense line items.

Math

Churn Rate Calculator

Calculate monthly and annual customer churn rate, retention rate, and average customer lif

Finance

Target Heart Rate Calculator

Calculate your target heart rate training zones using the Karvonen formula with resting he

Engineering

Pipe Flow Rate Calculator

Calculate the volumetric flow rate through a pipe using pipe diameter and fluid velocity.

Everyday

Dog Age Calculator

Convert your dog age to human years based on size and breed group for a more accurate comp

Everyday

Lawn Care Calculator

Calculate the amount of fertilizer, seed or weed killer needed for your lawn based on area