Free Online Calculators
Welcome to the Allsums hub of free online calculators, a comprehensive suite of tools designed to simplify complex calculations for everyone. Whether you’re a business owner analyzing profitability, an investor planning for the future, or just need a quick answer for an everyday problem, you’ll find an accurate, easy-to-use calculator here. Explore the categories below to find the perfect tool for your needs.

Click the button to access the free online calculators.
Optimize your company’s financial performance with our comprehensive suite of business finance calculators. Accurately calculate profit margins, cost of goods sold (COGS), break-even points, working capital needs, cash flow projections, invoice discounts, business valuation, and ROI. These essential tools enable entrepreneurs, accountants, and business owners to make data-driven decisions, enhance profitability, and ensure sustainable growth.
Streamline your employee management and payroll processes with our payroll and workforce calculators. Effortlessly compute accurate salaries, manage time cards, and analyze employee turnover rates to optimize HR operations. These tools support businesses in saving time, minimizing errors, and maintaining compliance while ensuring fair and transparent payroll management.
Stay compliant and avoid costly errors with our tax and compliance calculators. Instantly calculate GST for India and determine accurate sales tax amounts for your transactions. Designed for businesses and tax professionals, these calculators simplify tax calculations, improve accuracy, and help meet regulatory requirements efficiently.
Plan your investments wisely and grow your wealth with our investment and savings calculators. From calculating compound interest, SIP returns, and systematic plans (SWP & STP) to comparing lease versus buy scenarios and estimating loan EMIs — these tools empower investors and financial planners to make informed decisions and maximize returns with minimal risk.
Manage everyday operational expenses effortlessly with our operational cost calculators. Calculate fuel expenses, depreciation costs, inventory turnover, and conversion rates with ease. Perfect for logistics managers, production planners, and business owners, these calculators help control costs, enhance efficiency, and support smart budgeting decisions.
Save time and simplify date-related planning with our date and time calculators. Quickly add or subtract dates, count the exact number of days between two dates, or determine business days excluding weekends and holidays. These tools are invaluable for project managers, HR professionals, and anyone needing accurate date calculations for schedules and deadlines.
Take control of your finances with our easy-to-use personal and other business tools. Whether you’re managing household expenses or planning a business budget, this tool helps you organize income and expenditures, set realistic savings goals, and track spending to stay within your limits. Perfect for individuals, families, and small businesses, this calculator simplifies budgeting, improves financial discipline, and supports more innovative money management for a secure financial future.
Frequently Asked Questions
How accurate are the financial calculators on Allsums?
Our free online calculators are built on standard, industry-accepted mathematical formulas to provide highly accurate and reliable estimates. They are excellent for planning, comparison, and “what-if” scenarios. However, for official financial decisions, we always recommend consulting with a qualified professional.
Are all the online calculators on this page completely free to use?
Yes, absolutely. Every calculator available on Allsums is 100% free to use. There are no subscriptions, hidden fees, or usage limits. Our mission is to provide accessible tools to help everyone make informed decisions.
Is my personal data safe when I use these tools?
Your privacy is our top priority. The calculators on this page perform all calculations directly in your browser. We do not ask for, track, or store any of the personal or financial data you enter. Your information remains completely anonymous and secure.
Which calculator should I use for business profitability?
For a quick health check, start with the Profit Margin Calculator. To understand your core costs, use the Cost of Goods Sold (COGS) Calculator. For a complete picture of when your business will start making a profit, the Break-Even Analysis Calculator is your most powerful tool.
What is the difference between the GST and the Sales Tax calculator?
The GST Calculator is specifically designed for India’s Goods and Services Tax system, calculating CGST, SGST, and IGST. The Sales Tax Calculator is a more general tool that can be used for US-style sales tax or any simple percentage-based tax calculation on a price.
How can an investment calculator help me plan for retirement?
Our investment calculators, like the Compound Interest Calculator and SIP Calculator, are essential for retirement planning. They allow you to visualize how regular investments can grow over time, helping you set realistic goals and understand the long-term impact of your investment strategy.
Can I use these calculators on my mobile phone?
Yes! Our entire suite of calculators is fully responsive and designed to work perfectly on all devices, including mobile phones and tablets. You can get quick, accurate calculations on the go, anytime you need them.
What is a Loan EMI Calculator and how does it work?
An EMI (Equated Monthly Instalment) calculator helps you determine the fixed monthly payment you’ll need to make on a loan. By entering the loan amount, interest rate, and tenure, it calculates your monthly outgo, allowing you to budget effectively before taking on debt.
Do I need to create an account to use these calculators?
No account or sign-up is required. All our tools are available for immediate, anonymous use. Simply navigate to the calculator you need and start entering your figures right away.
I'm starting a new business. Which calculators are most essential for me?
For new entrepreneurs, we recommend starting in our “Business Finance & Profitability” section. The Break-Even Analysis Calculator is crucial for setting initial sales goals. The Profit Margin Calculator will help you price your products correctly, and the Cash Flow Calculator is vital for managing your day-to-day operational funds.
I need to calculate the duration between two dates. Which tool should I use?
For calculating time spans, you have a few options in our “Everyday & Utility” section. Use the No of Days Calculator to find the total number of days between two dates. If you need to exclude weekends, the Business Days Calculator is the perfect tool for the job.
Can your investment calculators be used for Indian markets like mutual funds?
Yes. Our “Investment & Wealth Planning” calculators, especially the SIP, Lumpsum and Hybrid Calculator, are perfectly suited for modeling investments in Indian mutual funds. You can input expected returns to visualize how regular investments (SIPs) or one-time investments (Lumpsum) can grow over time.
Why are there so many different investment calculators (SIP, SWP, STP)?
Each investment calculator serves a unique phase of your financial journey. SIP is for accumulating wealth through regular investments. SWP (Systematic Withdrawal Plan) is for generating regular income from your accumulated wealth (ideal for retirement). STP (Systematic Transfer Plan) is for strategically moving funds between different types of schemes.
I'm struggling with pricing my products. Which calculators can help me set the right price?
Setting the right price is crucial for success, and several of our calculators work together to give you a complete pricing strategy.
Start with the Basics: Use the Cost of Goods Sold (COGS) Calculator to understand the direct cost of each product you sell.
Determine Your Floor: Next, use the Break-Even Analysis Calculator to find the minimum sales volume you need to cover all your costs. This tells you the absolute lowest price point at which you can operate without losing money.
Set Your Profit Goal: Finally, use the Profit Margin Calculator to experiment. Input your cost and a target selling price to see what your margin will be. Adjust the selling price until you reach a profit margin that aligns with your business goals and industry standards.
Can I suggest a new calculator to be added to Allsums?
We are always looking to expand our suite of tools to better serve our users. If you have an idea for a calculator that you believe would be helpful, please feel free to reach out to us via our “Contact Us” page. We value all user feedback.
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📢 Disclaimer:
The calculators provided on this website, including but not limited to SIP, Lumpsum, EMI, ROI, and other financial tools, are designed for informational and educational purposes only. The results are based on assumptions and approximate values, and actual outcomes may vary depending on market conditions and other factors. These calculators do not provide professional financial, investment, tax, or legal advice. Users are encouraged to seek guidance from qualified professionals before making any financial decisions. The website owner assumes no responsibility for any discrepancies or losses resulting from the use of these calculators.