Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Invoice Total Calculator (Discount, Tax & Shipping)

Build a client invoice total from a subtotal by applying an early-payment or volume discount, adding sales tax or VAT, and including a shipping or handling fee.

Invoice Subtotal ($)

Discount (%)

Tax / VAT Rate (%)

Shipping / Handling ($)

Fill in the required fields to see your result.

Business

Break-Even Units Calculator (with Target Profit)

Find how many units you must sell to cover all fixed and variable costs, and optionally to hit a target profit, based on your price and per-unit variable cost.

Total Fixed Costs ($)

Selling Price per Unit ($)

Variable Cost per Unit ($)

Target Profit ($)

Fill in the required fields to see your result.

Key differences

	Invoice Total Calculator (Discount, Tax & Shipping)	Break-Even Units Calculator (with Target Profit)
Category	Business	Business
Inputs required	4	4
Result	Invoice Total ($)	Units to Sell (units)
What it does	Build a client invoice total from a subtotal by applying an early-payment or volume discount, adding sales tax or VAT, and including a shipping or handling fee.	Find how many units you must sell to cover all fixed and variable costs, and optionally to hit a target profit, based on your price and per-unit variable cost.