Free Business & Personal Calculator
Business loans, AI costs, shopping discounts, social media earnings, date & time tools, and more. All free, all instant.
Discount Calculator
Calculate sale prices, savings, and tax instantly
Discount Details
Enter the original price, discount, and optional tax rate
Optional: applied after discount
Find a Calculator
Search all 26 tools — business, AI, shopping, social media, dates, and more.
Try "profit", "AI cost", "YouTube", or "countdown"
Business Calculators
(6)Freelance Rate Calculator
Determine your ideal hourly rate as a freelancer.
Break-Even Calculator
Find the point where your revenue equals costs.
Profit Margin Calculator
Calculate gross, operating, and net profit margins.
Mileage Reimbursement Calculator
Calculate tax-deductible mileage reimbursement for business travel using IRS standard rates.
Business Loan Calculator
Calculate monthly payments for business loans including SBA 7(a), term loans, lines of credit, and equipment financing with amortization.
Real Estate Investment Calculator
Evaluate rental property investments with NOI, cap rate, cash-on-cash return, rental yield, and 10-year cash flow projections.
AI & Tech Calculators
(7)AI Token Cost Calculator
Estimate costs for using AI models like GPT-4, Claude, and more.
Cloud Cost Calculator
Estimate monthly cloud computing costs.
API Rate Limit Calculator
Plan API usage within rate limits.
Bandwidth Calculator
Calculate data transfer needs and bandwidth.
Vibe Coding Cost Calculator
Estimate your monthly costs for AI-powered coding tools like Claude, ChatGPT, Cursor, Windsurf, GitHub Copilot, and more.
AI Spend Tracker
Track and estimate your monthly AI tool spending across ChatGPT, Claude, Midjourney, GitHub Copilot, and other AI subscriptions.
AI App Cost Estimator
Estimate the cost to build an AI-powered app including API costs, hosting, development time, and ongoing maintenance.
Shopping Calculators
(2)Discount Calculator
Calculate sale prices, discount amounts, and total savings including tax. See exactly what you pay after percentage discounts and sales tax.
Sales Tax Calculator
Calculate sales tax amount and total price from any item price and tax rate. Supports reverse calculation to find the pre-tax price from a total. Includes a reference table of US state sales tax rates.
Social Media Calculators
(2)YouTube Money Calculator
Estimate your YouTube channel earnings based on daily views, CTR, niche, and viewer region. Compare ad revenue, sponsorships, affiliate income, and merchandise. See CPM rates by niche and project annual income.
TikTok Money Calculator
Calculate your TikTok earnings from Creator Fund, sponsorships, LIVE gifts, and affiliate marketing. See your creator tier, engagement rate, and niche RPM comparison.
Date & Time Calculators
(6)Date Difference
Calculate the exact days between two dates.
Countdown Calculator
Count down to any date or event.
Work Hours Calculator
Calculate work hours and earnings.
Time Duration Calculator
Calculate the exact duration between two dates and times, or add/subtract time from a date. Includes business days calculation.
Time Zone Converter
Convert time between any two time zones worldwide. See live clocks, time differences, and find the best meeting times across time zones. Covers all major cities and regions.
Business Days Calculator
Calculate business days between two dates or add business days to a date. Excludes weekends and US federal holidays. Essential for project deadlines, contract dates, and delivery estimates.
Niche Calculators
(3)Smarter Decisions, Zero Cost
Use the Discount Calculator above to instantly see your savings, or explore all 26 business and personal tools.