Free Financial, Business & Marketing Calculators
Make data-driven decisions with Silixen's comprehensive collection of free online calculators. Whether you are projecting long-term compound interest savings, calculating commercial real estate capitalization rates, benchmarking restaurant food cost percentages, or running statistical significance checks on marketing A/B tests, our interactive calculators provide instant mathematical precision. Every calculator features clear formula explanations, benchmark tables, and exportable outputs designed for entrepreneurs, investors, and operations leaders.
Available Calculators
Select any tool below to start using it immediately with zero sign-up.
Compound Interest Calculator
Calculate compound interest on investments and savings with our free online calculator. See annual growth projections, deposit schedules, and breakdowns.
Business Days Calculator
Calculate the exact number of business days and working days between two dates. Exclude weekends and custom holidays. Accurate, free, and instant.
Concrete Calculator
How much concrete do you need? Yards, feet & metres, whole pre-mix bags, cement, sand & aggregate by grade, and a ready-mix vs bags cost check.
Real Estate Cap Rate Calculator
Calculate the capitalization rate (Cap Rate) on commercial and residential rental properties. Evaluate ROI, net operating income (NOI), and purchase price.
Restaurant Food Cost Calculator
Calculate restaurant food cost percentage and menu pricing online for free. Optimize dish profit margins, monitor inventory waste, and increase revenue.
Video File Size Calculator
Calculate video file size before recording or rendering. Estimate storage from video bitrate, audio bitrate, framerate, and length. Free and accurate.
A/B Test Significance Calculator
Free A/B test significance calculator: p-value, confidence interval, chance to win, sample-size planner & peek guardrail. Honest stats, in your browser.
Ecommerce Pricing Calculator
Calculate e-commerce profit margins, markup percentages, and selling prices. Factor in shipping, platform fees, and marketing cost per order for free.
Meta Ads ROAS Calculator
Calculate ROAS, CPA, and break-even targets for Facebook and Instagram ad campaigns. Optimize paid social advertising budgets with our free calculator.
Automation ROI Calculator
Free automation ROI calculator: hours saved, payback period, 3-year returns and scenario comparison, with AP presets. 100% in your browser.
Marketing ROI Calculator
Calculate overall business marketing return on investment. Factor in campaign spend, sales pipeline revenue, and gross margins with our free calculator.
Digital Marketing ROI Calculator
Calculate digital marketing ROI, cost per lead, customer acquisition cost (CAC), and paid traffic returns. Free calculator for PPC and social ads.
Marketing Budget Allocator
Allocate your annual and monthly marketing budget across SEO, paid ads, content, and events with our free calculator. Industry benchmark presets included.
Creator Earnings Calculator
Estimate YouTube video and Shorts earnings from views, RPM, and niche category CPM. Calculate potential creator income with our free online tool.
Design Toolkit Unit Calculator
Convert pixels to REM, calculate modular typographic scales, and compute responsive fluid font clamps. Free calculator for UI and UX designers.
Organic Batch Formulation Calculator
Scale organic formulations, botanical recipes, and batch production volumes with our free calculator. Calculate ingredient weight percentages and yields.
Zero Investment Business Calculator
What a zero-investment business really costs: startup costs, monthly need incl. your living costs, savings runway, break-even + a 12-month projection. Free.
Why Use Silixen for Calculators?
100% Free Forever
Zero credit cards, zero hidden paywalls, and no subscription traps.
Privacy by Design
All client-side tools run in your browser. Files and inputs never leave your device.
High Accuracy & Speed
Engineered with optimized WebAssembly, canvas rendering, and instant formulas.