Total Cost Calculator

Calculate the total cost of an item based on quantity, price per unit, and additional expenses.

Input Parameters

Calculation Results

Calculation Formula

Total Cost = (Quantity × Price per Unit) × (1 + Tax Rate) + Shipping Cost

Where:
- Quantity: Number of items purchased
- Price per Unit: Cost of one item
- Tax Rate: Applicable tax percentage
- Shipping Cost: Additional shipping charges

Total Cost Calculator Calculator Usage Guide

Learn how to use the Total Cost Calculator and its working principles

How to Use the Total Cost Calculator

  1. Enter the quantity of items you wish to purchase in the "Quantity" field.
  2. Input the price per unit in the "Price per Unit ($)" field.
  3. Specify the applicable tax rate in the "Tax Rate (%)" field.
  4. Enter any additional shipping costs in the "Shipping Cost ($)" field.
  5. Click the "Calculate" button to compute the total cost.
  6. The results will display the subtotal, tax amount, and total cost.

Working Principle

The calculator works by first calculating the subtotal (quantity × price per unit). It then applies the tax rate to the subtotal to determine the tax amount. Finally, it adds the shipping cost to the subtotal plus tax to arrive at the total cost.

Example

If you purchase 5 items at $20 each, with a tax rate of 8% and a shipping cost of $5:

  • Subtotal: 5 × $20 = $100
  • Tax Amount: $100 × 0.08 = $8
  • Total Cost: $100 + $8 + $5 = $113