It will probably increase your tax in the short run to turn it into a Roth IRA. However, in the long run, a Roth IRA may be much more advantageous. There are a lot of variables which we don't know, so cannot give you a firm conclusion.
But you need to
(1) evaluate whether or not a traditional IRA contribution would save you any tax this year (it might not be deductible, depending on your circumstances)
(2) work with an Excel spreadsheet or a financial planner to estimate how much growth the Roth IRA may enjoy over your life until you can start to withdraw from it.
(3) decide whether or not you want to leave an estate (traditional IRAs generally must be distributed over the life of your retirement through Required Minimum Distributions, while Roth accounts don't have to be.
Really, there is a lot to consider here, and I would engage a financial planner to help you ask the right questions. The tax aspect is just one aspect, and if you are young enough, eventually not very consequential.