Free Online Calculators & ConvertersFigure It Out Faster.

Yes. FigureNest calculators and converters are free to use without creating an account or crossing a paywall.

Start with the outcome you need rather than a formula name. Use Finance for borrowing, saving, tax and percentage questions; Salary & Work for gross-pay comparisons; Business for pricing, margin and break-even decisions; Converters when the value is known but the unit needs to change; and the focused Health, Construction, Electrical, Automotive, Date & Time, Printing & Design, Technology, Science & Engineering, Education, or File Tools categories when the task belongs to one of those areas. Category pages explain what each tool is for, important assumptions, and when a neighboring tool is a better fit. Browse the calculator directory

Use the calculator directory when you know the general task and want to compare nearby tools across the full collection. Open a category guide when the distinction between tools matters—for example, margin versus markup, loan versus mortgage, or pixels versus physical print size—because those pages explain scope, units, assumptions, and which neighboring tool fits a different question. Site search is fastest when you already know a tool name or can describe the outcome in a few words. If a job has several stages, choose one tool for each stage rather than forcing unrelated inputs into a single calculation, and keep the units, currency, period, and source assumptions consistent as you move between results. Compare tools by category

A similar input does not always mean the same question. Margin and markup use different denominators; a mortgage estimate can include housing-specific costs that a general loan calculation does not; and converting a unit is different from estimating a real-world cost from several assumptions. FigureNest keeps those jobs separate so the inputs, formula, units, limitations, and interpretation can match the decision being made. When a task has several stages, use the directory or category guide to choose the next tool and carry forward only the result that actually represents the input the next step needs. See how the directory separates related tasks

A fixed loan payment uses the amount borrowed, periodic interest rate, and number of payments. The result repays principal and interest over the chosen term, assuming a fixed rate and regular payments. Use the loan payment estimator

Compound interest applies growth to the starting principal and to interest already earned. The rate, compounding frequency, time, and any contributions can all change the projected balance. Try the compound interest calculator

Principal and interest come from the loan formula. A fuller housing estimate may also include property taxes, homeowners insurance, mortgage insurance, association dues, and maintenance when they apply. Estimate a mortgage payment

Convert the percentage to a decimal and multiply it by the number: 20% of 80 is 0.20 × 80, or 16. Separate tools can compare percentage change or reverse a percentage. Open the percentage calculator

Choose the quantity and units that describe the same kind of measurement, then apply the defined conversion relationship. Length and mass usually use a scale factor, while temperature needs an offset as well as a scale, so it should not be converted by multiplying alone. Open the unit converter

FigureNest file tools are designed to process supported files locally in your browser where the tool says processing is local. Format support and fidelity vary by conversion, so review the individual tool guidance and inspect the downloaded result before relying on it. Browse browser-based file tools

Choose the destination from what must survive the conversion. PDF is usually best when predictable sharing or printing matters; DOCX or XLSX is more useful when text or spreadsheet data must remain editable; PNG is a good fit for crisp page graphics; and JPG can be smaller for photographic pages. Converting formats can change fonts, pagination, formulas, transparency, metadata, forms, signatures, accessibility information, or other structure, so keep the original and check the exported file before deleting or distributing it. Compare the file-tool options

A date-duration calculation compares two calendar dates and reports the elapsed span. Calendar months and years are not fixed numbers of days, so use a date-aware calculator when you need calendar differences rather than dividing a day count by an average month length. Browse date and time calculators

We compare displayed formulas with representative calculations, exercise ordinary and boundary inputs, check unit conversions and rounding, and explain important assumptions and limitations. These checks reduce avoidable errors but do not guarantee every result. Read the calculator methodology

Public calculator inputs are processed in the browser and do not require an account. FigureNest may collect consent-controlled usage events, but those events do not include the values entered into calculator fields. Do not enter sensitive information. Read the privacy policy