Roth vs Traditional 401K
Calculate Roth vs Traditional 401K instantly with the exact formula and a worked example.
Roth vs Traditional 401K
Roth deduction$
Traditional deduction$
Δ tax savings
20$
More about: Roth vs Traditional 401K
What it calculates
The “Roth vs Traditional 401K” calculator computes Δ tax savings in $ from 2 parameters: roth deduction ($), traditional deduction ($).
Helps estimate your tax burden, check deductions, and plan tax payments.
Example calculation
With parameters Roth deduction = 100 $, Traditional deduction = 80 $ the result is 20 $.
How to use
- Enter roth deduction and traditional deduction — each field above is adjustable with a slider.
- Δ tax savings ($) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How does sales tax work in the US?
Sales tax is added to the price of goods at checkout and varies by state and locality. For example: California 7.25%, New York ~8%, Texas 8.25%, Florida 6%. Some states have no statewide sales tax.
How do I add sales tax to a price?
Multiply the pre-tax price by the tax rate to get the tax amount, then add it to the price. Example: $1,000 × 7.25% = $72.50 tax, for a $1,072.50 total.
How do I extract tax from a tax-inclusive total?
Divide the total by (1 + rate). Example: a $1,072.50 total at 7.25% gives a $1,000 pre-tax price, so the tax was $72.50. Use the “tax included” toggle to do this automatically.
What is VAT and how is it different?
VAT (Value Added Tax) is used across the EU and many other countries, typically 17–27%, and is usually shown included in the displayed price. US sales tax is normally added at checkout instead.
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