Convert between profit margin and markup. Enter cost and selling price, or cost and margin %, or cost and markup % to get the other values. Perfect for pricing and retail.
Calculate sales tax in seconds. Add sales tax to pre-tax amount or remove sales tax from total. Supports US state rates and any custom rate.
Calculate tip and split the bill in seconds. Enter bill amount, tip percentage (15%, 18%, 20%), and number of people. Get tip amount, total, and per-person cost.
Calculate discounts instantly. Enter original price and a percentage off or fixed amount off to get the sale price and how much you save. Perfect for sales, clearance, and pricing.
Calculate VAT (Value Added Tax) in seconds. Add VAT to net amount or remove VAT from gross amount. Supports UK 20%, EU rates, and any custom rate.
Calculate GST (Goods and Services Tax) in seconds. Add GST to net amount or remove GST from gross amount. Supports any rate — perfect for invoicing, pricing, and accounting.
Learn how equity dilution works when new shares are issued, how option pool increases affect founders, and how to estimate post-money ownership using Tooladex’s Equity Dilution Calculator.
Use the Rent vs Buy Calculator to compare renting versus buying a home over your planned stay. Includes mortgage payments, taxes, insurance, HOA, maintenance, appreciation, rent increases, and investing the difference.
Use the Buy vs Lease Calculator to compare the true cost of buying versus leasing a vehicle. Includes loan payments, sales tax, insurance, maintenance, depreciation, mileage penalties, and a break-even timeline.
Discover if you're on track for retirement. Learn how to calculate your retirement savings needs, understand the power of compound interest, and see how small changes today can dramatically impact your future. Use our retirement savings estimator to plan your financial future.
Discover the true cost of buying a car beyond the sticker price. Learn about hidden fees, interest costs, and how to calculate what you'll really pay. Use our car payment estimator to make informed decisions and avoid dealer tricks.
Learn how to convert a target annual salary into realistic freelance hourly, daily, and project rates by accounting for tax, expenses, non-billable time, and profit margin.
Learn how currency conversion works, what affects exchange rates, and how to use the Tooladex Currency Converter for fast, accurate conversions with live exchange rates.
Learn how compound interest grows your savings and investments over time, and how the Tooladex Compound Interest Calculator helps you project returns, compare scenarios, and understand long-term growth.
Learn how loan payments are calculated, how interest is determined, and how the Tooladex Loan Calculator helps you estimate monthly payments, total interest, amortization schedules, and the impact of extra payments.
Learn what ROI is, how it’s calculated, and how to use the Tooladex ROI Calculator to measure profit, performance, and growth accurately.