You can use the TurboTax calculator TaxCaster it get an estimate of your tax liability - https://turbotax.intuit.com/tax-tools/calculators/taxcaster/
If you were using the TurboTax software the 2019 estimated taxes can be calculated using the procedure in this TurboTax support FAQ - https://ttlc.intuit.com/community/tax-payments/help/can-turbotax-calculate-next-year-s-federal-estim...
