Calculator Tools

Explore free calculator tools for finance, health, date calculations, unit conversions, and more. Built for students, professionals, and everyday use. Works instantly in your browser.

payments

EMI Calculator

Finance

Calculate monthly loan EMI with detailed amortization schedule. Perfect for home loans, car loans, and personal loans.

Amortization schedule Interest breakdown Instant results

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SIP Calculator

Finance

Calculate mutual fund SIP returns and investment growth. See how your monthly investments can grow over time.

Investment growth Returns projection Yearly breakdown

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SWP Calculator

Finance

Estimate monthly withdrawals from your investment using a Systematic Withdrawal Plan. See balance growth and sustainability.

Withdrawal planning Balance projection Sustainability check

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Monthly Budget Calculator

Finance

Create and manage a monthly budget by tracking income, expenses, investments, and savings with instant breakdown and export options.

Income tracking Expense categorization Export options

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Discount & Percentage Calculator

Finance

Calculate discounts, markups, and percentage changes instantly. Perfect for shopping and business calculations.

Discount calculation Markup calculator Percentage change

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Cost Per Unit Calculator

Finance

Calculate cost per unit such as per km, per item, per hour, or per GB easily. Compare prices and find the best deals.

Price comparison Multiple units Instant calculation

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Attendance Salary Calculator

Finance

Calculate salary based on attendance and working days. Perfect for payroll and HR calculations.

Attendance tracking Salary calculation Working days

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public

Carbon Footprint Calculator

Environment

Calculate CO2 emissions from your digital activities. See how many trees are needed to offset your digital carbon footprint.

CO2 calculation Tree offset Digital impact

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Date Difference Calculator

Date & Time

Calculate days, months, and years between two dates. Perfect for project planning, age calculation, and event countdowns.

Days between dates Months & years Work days

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Unit Converter

Convert length, weight, temperature, and 100+ units instantly. Support for metric, imperial, and other measurement systems.

100+ units Multiple categories Instant conversion

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About DozyTools Calculators

DozyTools Calculators is a comprehensive collection of free browser-based calculator tools. Whether you need to calculate loan EMIs, plan your monthly budget, convert units, or find the difference between dates, we have you covered.

Our Finance Calculators help with EMI, SIP, SWP, budgeting, and discount calculations. The Unit Converter supports 100+ units across multiple categories. The Date Difference Calculator is perfect for project planning and event tracking.

All calculators work instantly in your browser with no signup required. Your data stays private — nothing is stored or sent to any server.