Mama2Five, the online calculators are based on an imaginary person, not you. The standard used for those calculators is a made-up someone who has a completely different bone structure, lean body mass, food and weight history, genetic make-up, and metabolism than the person using the calculator.
No calculator, software, book, or other person can ever know how much you need to eat to lose weight or maintain. I look at those calculators now and then. The recommended range of calories varies quite a bit.
There are many threads on this subject.
We all have to find out what works for us through experimenting, the old-fashioned trial and error. I cycle calories. There are several threads regarding calorie cycling (aka zigzag). Many of us find it helps.
Also, the less we weigh, the fewer calories our bodies need.
If you're interested, have a look using the search engine. I think I read the entire Living Maintenance section my first week on this forum. It helped me a great deal. For one thing, reading that forum helped me give myself permission to eat much less than the online calculators "said".
All the best to you!