http://www.successtitle.com/index.php?option=com_ipricecalc&view=category&Itemid=161 This is a pretty reliable calculator. It's very accurate, or so my friend says.
If you are looking for a closing cost calculator, many websites offer them free of charge. Websites such as homeliferealtyone, ingdirect, and calumross all offer these types of calculators.
http://www.jamesfcollins.com/calculators/closing_cost.htm is a website I would recommend that had a very reliable closing cost calculator that will help you with everything you need for the costs of your new home.
Electronic calculators are usually accurate to about 10 significant figures.
Most closing cost calculators use very generalized information in order to get a baseline price to show the user. Almost all calculators will have a disclaimer stating this near the bottom. Fair pricing depends on the broker you use; is the broker cost high? Are there things added on to the total that look a bit odd?
Income tax return calculators are generally very accurate. It is essential to find one that is trusted.
Mortgage payoff calculators are accurate, however they are only accurate if your morgagte doesn't change in the future. For example, if you change your rate and refinance, a prior calculation might not be accurate.
They will be as accurate as annuity calculators in other countries, all of them exclude liability of accuracy so it is best to get a real calculation.
Debt calculators are only an estimate but they are fairly accurate. They are meant to give you an idea of your debt and income ratio and what you can or cannot afford.
Most gas bill calculators are accurate in depicting how much your monthly gas bill will cost. In fact they are a great way to manage your expenses and budget for gas.
There are many mortgage rate calculators online and most of them are pretty accurate. That said, the best way to get the most accurate figure available is to use multiple mortgage rate calculators and then use their results to figure out the average rate.
Rulers, calculators, etc.
In this day and age I would have to say yes, reverse mortgage calculators are accurate. Technology has come a long way. Where calculators use to take up an entire room,now they fit in your hand.