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8362 tools available
The Developer category contains 165 specialized utilities engineered to streamline your coding workflow and reduce debugging time. This suite includes high-performance code formatters, interactive API testers, regular expression builders, and rigorous JSON validators. Whether you are troubleshooting a complex regex pattern or verifying the structure of a large dataset, these developer-centric tools provide immediate, accurate feedback to help you maintain high code quality.
377 tools
Our General Conversion category features 286 free tools designed to assist users in converting various units across different categories, from astronomical measurements and barometric pressures to weight and binary conversions. From Celsius to Fahrenheit calculators to bar-to-PSIG converters and binary-to-octal converters, these resources help ensure accurate data in a wide range of applications. Whether you are a student working on homework or a professional needing precise calculations for your work, this category has the tools to meet your needs.
343 tools
Our Math & Numbers category features 214 free tools designed to simplify complex calculations, conversions, and data analysis across various fields. From astronomical converters to BTU calculators and bag footprint estimators, these resources empower users with quick, accurate solutions for their mathematical needs. Whether you are a student working on homework or a professional needing precise measurements in your field of work, this category has the tools you need.
328 tools








Calculates markup percentage based on cost price and selling price to help users determine profit margins effectively. Enter the original cost of an item and its final sale price, then click calculate to find out the markup percentage. Ideal for small business owners, retail shop managers, and anyone looking to optimize pricing strategies. Business professionals and entrepreneurs use Markup Calculator Classic to ensure they are maximizing profits by setting appropriate prices for products or services. It aids in financial decision-making, allowing users to quickly assess profitability and adjust pricing strategies as needed to stay competitive in the market.

Estimates PayPal transaction fees to help users understand the financial impact of sending or receiving money through the platform. The tool allows individuals to input specific amounts and determine several key figures, including how much a sender must pay to ensure a recipient receives an exact net amount. It calculates the total deduction taken by PayPal from transactions, providing clarity on the true value received after fees are applied. Users who engage in online commerce or receive payments via PayPal benefit from this detailed estimation. Merchants and individuals selling goods or services can use it before setting prices to account for anticipated processing costs. Furthermore, anyone needing to verify the final payout amount when funds are sent directly to them can efficiently determine the expected proceeds.


Calculates the time required for a company to complete its full operating cycle by analyzing key financial metrics. This tool takes inputs related to accounts receivable, inventory, and accounts payable to determine the cash conversion cycle (CCC). A shorter CCC generally indicates that a business is managing its working capital efficiently, meaning it converts raw materials into cash quickly. The resulting number provides a crucial measure of operational efficiency and liquidity management. Managers, financial analysts, and small business owners use this calculator to assess the overall health and working capital needs of an enterprise. By monitoring the CCC over time, users can identify bottlenecks in their supply chain or sales process that may be tying up excessive cash.

Calculates the days inventory outstanding (DIO) ratio, estimating how long it takes for a company to sell its inventory based on its average daily sales and ending inventory. Users input their company's average daily sales and ending inventory values, and the calculator performs the necessary calculations to provide the DIO result. Business owners and managers would use this tool to assess their inventory management efficiency and identify potential areas for improvement in reducing the time between purchasing inventory and generating sales revenue.

Calculates the free cash flow to firm of a company, providing insights into its financial health by considering operating activities, capital expenditures, and financing activities. Helps users assess a company's ability to generate cash after all expenses and investments have been accounted for. Business owners, investors, and analysts would use this tool to evaluate a company's financial performance, make informed investment decisions, and assess the company's capacity for growth and debt repayment.

Calculates marginal revenue by determining the additional income generated from selling one more unit of a product. Enter the total revenue and quantity sold to find the marginal revenue per unit. Helps users in business and economics understand pricing strategies, production levels, and profit margins. Ideal for entrepreneurs, marketers, and financial analysts looking to optimize their sales and revenue growth.


Calculates a company's net operating working capital by determining the difference between current assets and current liabilities, offering insights into the company's short-term liquidity. Helps users assess financial health and operational efficiency. Business owners and managers utilize this tool to gauge their organization's ability to meet immediate obligations without resorting to long-term financing, ensuring better decision-making for resource allocation and strategic planning.

Calculates total revenue and net sales by inputting selling price and number of units sold. Helps users quickly determine financial performance from sales data. Suitable for small businesses, independent sellers, and anyone needing to assess their sales metrics without complex calculations. Ideal for making informed decisions based on accurate sales figures.

Calculates unlevered free cash flow, providing insight into financial health by estimating the cash available for stockholders and debtholders after accounting for capital expenditures and depreciation. Users input relevant financial data to receive a clear picture of operational performance, aiding in investment decisions or assessing business profitability. Helps users determine a company's intrinsic value, make informed financial planning choices, and evaluate the effectiveness of management strategies by offering a quantitative measure of a firm's ability to generate cash from its operations.

Calculates the economic cost to society resulting from market interventions, specifically addressing deadweight loss. This tool allows users to model how artificially regulated prices or restricted markets deviate from the natural supply and demand equilibrium point. By inputting relevant economic parameters, the calculator quantifies the efficiency lossโthe reduction in total welfareโthat occurs when a market is prevented from reaching its optimal operational state. Economists, policy researchers, and students of public finance utilize this resource to analyze regulatory impact. It helps determine the potential societal costs associated with price floors, ceilings, or other governmental controls that interfere with free exchange.


Calculates the Gross Domestic Product (GDP) deflator, which measures the current overall price level of all goods and services produced within an economy relative to a specified base year. Users input relevant price data, allowing the tool to compute how changes in prices affect reported economic output. The resulting figure provides an inflation-adjusted measure, offering insight into whether observed changes in GDP are due to actual increases in production or merely increases in prices. Economists, students, and financial analysts utilize this calculator to study historical trends and model future economic performance. It is particularly helpful for anyone needing to compare economic data across different time periods accurately.

Calculates the change in a country's Gross Domestic Product (GDP) over specified time periods. This economic growth rate calculator allows users to input relevant data points to determine the percentage increase or decrease of an economy's overall output. By analyzing these figures, the tool provides an estimated measure of the nationโs economic expansion or contraction. The straightforward interface guides users through the necessary inputs required for a comprehensive calculation of the GDP growth rate. Students, researchers, and business analysts utilize this calculator to model potential economic trends and understand historical performance. It assists in comparing the relative health of different economies across timeframes.

Calculates the Gini coefficient, a measure of income inequality within a region or country based on the distribution of income among its population. Users enter income data, and the calculator computes the coefficient, providing insights into the level of equality or disparity in incomes. Ideal for policymakers, economists, educators, and anyone interested in understanding economic equity. Helps users quickly assess income distribution by comparing the Gini coefficients of different regions or time periods. Useful in research, education, and discussions about social policies, economic development, and global inequality trends.

Calculates the percentage of required stable funding sourced from available stable funding using a straightforward formula based on user inputs such as total assets, risk-weighted off-balance sheet items, and other financial metrics relevant to NSFR compliance. Helps users assess their compliance with regulatory requirements and plan for necessary capital allocation. Financial professionals, banks, and institutions needing to ensure they meet NSFR (Net Stable Funding Ratio) regulations would use this tool to gauge their funding stability. By providing a quick and accurate calculation of their NSFR ratio, it assists in making informed decisions about funding strategies and resource allocation to maintain regulatory compliance.