Just wondering if anyone knows of a good website that provides *fairly accurate* numbers in terms of take home pay and tax return calculators, based on zip code.

By fairly accurate I mean: within a few hundred dollars, if possible.

I'm not looking for something that wants input for every line on my paycheck etc. Just a good estimator that takes into account fed/state/local taxes.

I'm trying to put together a pay-band spreadsheet with fairly accurate numbers, in order to know my line in the sand on moving to Oklahoma.

Thanks!