Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k). You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Understanding Homeowners Insurance Purchasing homeowners insurance is critical for protecting your home. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. The Average American Budget Learn about the average American budget in this fun and interactive piece.