Free Online Calculators
Simple, fast, and free online calculators for everyday tasks, percentages, pricing, business, marketing, and ecommerce calculations. Choose a calculator below and get instant results — no registration required.
Popular Calculators
Percentage Calculator
Calculate percentages, percentage changes, increases, decreases, and percentage differences quickly and easily.
Use the Percentage Calculator →
Discount Calculator
Calculate sale prices, savings, discount percentages, original prices, and successive discounts.
Tip Calculator
Calculate tips, total bills, and amounts per person. Split the bill easily and optionally round the total.
Business Calculators
Markup Calculator
Calculate selling price, profit, markup percentage, and profit margin from your cost and selling price.
Profit Margin Calculator
Calculate profit, profit margin, required selling price, maximum cost, and equivalent markup.
Use the Profit Margin Calculator →
Sales Tax Calculator
Calculate sales tax, pre-tax prices, tax amounts, and final prices.
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VAT Calculator
Calculate VAT, net prices, VAT amounts, and prices including VAT.
Commission Calculator
Calculate sales commissions, commission rates, sales amounts, and earnings.
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Break-Even Calculator
Calculate the break-even point and determine how many units you need to sell to cover your costs.
Use the Break-Even Calculator →
Find the Right Calculator
Browse our calculators by category to quickly find the tool you need.
Percentage Calculators
Solve percentage problems, compare values, calculate increases and decreases, and work backward from percentage changes.
Percentage Calculator — Calculate percentages and solve common percentage problems.
Percentage Increase Calculator — Calculate the percentage increase from an original value to a new value.
Percentage Decrease Calculator — Calculate how much a value has decreased as a percentage.
Percentage Change Calculator — Measure the percentage change between an original and a new value.
Percentage Difference Calculator — Compare two values and calculate their percentage difference.
Percentage of Number Calculator — Find a percentage of any number.
Reverse Percentage Calculator — Find the original value before a percentage increase or decrease.
Discount Calculator — Calculate discounts, sale prices, savings, and original prices.
Pricing & Profit Calculators
Calculate prices, costs, margins, profits, commissions, taxes, and break-even points.
Markup Calculator — Calculate selling prices, markup, profit, and margin.
Profit Margin Calculator — Calculate profit margins or determine prices and costs from a target margin.
Gross Profit Calculator — Calculate gross profit from revenue and cost of goods sold.
Selling Price Calculator — Calculate the selling price needed to achieve a target profit margin.
Cost Price Calculator — Calculate cost price from selling price and profit.
Unit Price Calculator — Calculate the price or cost per individual unit.
Break-Even Calculator — Determine the sales volume required to cover fixed and variable costs.
Commission Calculator — Calculate commissions from sales amounts and commission rates.
Sales Tax Calculator — Calculate sales tax and final prices.
VAT Calculator — Add or remove VAT and calculate the VAT amount.
Contribution Margin Calculator — Calculate contribution margin and contribution margin percentage.
Marketing Calculators
Measure advertising performance, acquisition costs, conversion rates, and return on marketing spend.
ROAS Calculator — Calculate return on ad spend from advertising cost and revenue.
ROI Calculator — Calculate investment profit and return on investment.
Break-Even ROAS Calculator — Calculate the minimum ROAS required to break even.
CPC Calculator — Calculate cost per click from advertising spend and clicks.
CPM Calculator — Calculate advertising cost per thousand impressions.
CTR Calculator — Calculate click-through rate from clicks and impressions.
Conversion Rate Calculator — Calculate the percentage of visitors or users who convert.
Cost Per Acquisition Calculator — Calculate the average advertising or marketing cost per acquisition.
Cost Per Lead Calculator — Calculate marketing cost per generated lead.
Customer & Ecommerce Calculators
Measure customer acquisition, customer value, retention, ecommerce performance, and unit economics.
Customer Acquisition Cost Calculator — Calculate how much it costs to acquire a new customer.
Customer Lifetime Value Calculator — Estimate customer lifetime value from purchase value, frequency, and lifespan.
LTV:CAC Ratio Calculator — Compare customer lifetime value with customer acquisition cost.
CAC Payback Period Calculator — Estimate how many months it takes to recover customer acquisition cost.
Average Order Value Calculator — Calculate average order value from revenue and number of orders.
Churn Rate Calculator — Calculate the percentage of customers lost during a period.
Customer Retention Rate Calculator — Calculate the percentage of customers retained over a period.
Everyday Calculators
Quick tools for calculations you may need in everyday situations.
Tip Calculator — Calculate a tip, total bill, and how much each person should pay.
Days Between Dates Calculator — Calculate the number of days between two dates.
Why Use VAKUH Tools?
VAKUH Tools provides simple calculators designed to give you the information you need without unnecessary steps.
Free to use — Use our calculators without subscriptions or fees.
No registration required — Start calculating immediately.
Fast and simple — Enter your numbers and get results instantly.
Clear calculations — Our tools show results and relevant formulas to help you understand the calculation.
Works on any device — Use the calculators on desktop, tablet, or mobile.
Explore Our Free Online Calculators
Browse our growing collection of free calculators for percentages, pricing, profitability, marketing, ecommerce, customer metrics, taxes, and everyday calculations.
Whether you need to calculate a percentage change, determine a selling price, measure advertising performance, estimate customer value, or solve an everyday calculation, VAKUH Tools gives you a fast and simple way to get the result.