May I suggest using the TaxCaster to get a quick tax refund estimate, it is a free income tax calculator. With TaxCaster, you can accurately forecast your federal income taxes before you file to see how much you may get back or what you may owe on your tax return.
Use this tool and compare the estimated result with what you had in TurboTax, if they are completely different, then there's a very likely chance that something might be wrong with your return.
If you can't figure where the problem lies, may I suggest to clear and start
over your return.