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 The Average American Budget Learn about the average American budget in this fun and interactive piece. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article.