For those of you who ride a stationary bike...I need help.

I got myself a wider seat at first.
Get a HRM to get accurate calories burned.

Keep moving around on the seat. Over time your butt will get used to it. No probs.

On the calorie burn, two comments:
* get an HRM. It will become your best friend and really takes the guess work out of this. They are pretty consistently within 10%, which is about all you can ask for. I have a Timex Ironman HRM. love it. Do NOT get one that is just a watch. Get the chest strap. Much more effective.
* you COULD be burning 700 cal in 45 minutes but you would have to be hitting it pretty hard. I am an ex-cycling racer, in pretty good shape and hit the stationary hard... pools of sweat, etc... I get about 15 cals per minute which is about what you are reporting. How hard are you working? How much do you weigh? That also has an impact.

Personally, i never trust the calorie count on a machine. I trust my HRM.

Good luck!

Are you new to stationary bikes ? If so the sore butt will go away in about 4 more bike rides you can also purchase a padded bike seat from target or Walmart and out it on the bike. iWork's ugliest getting a heart rate monitor to get a more accurate monitoring of your calorie burn
Good job girlfriend - keep it up !

Take it from a biker (in the real world) that the seats on stationary bikes SUCK!! For me it's because they are too wide and, believe it or not, too soft. All that softness pushing on the soft tissue of the behind really hurts! I don't really have useful advice other than stand, sit, stand, sit, move. Get a real bike with a good seat and see some scenery while you work out!

I do spin classes at the local gym. Typically I burn 7-9 cal/min based on the readout on the bike computer. This changes due to the amount of resistance you use during the workout.

My running exercise where I measure the distance traveled and time taken to get MPH which MFP database uses to compute calories burned typically has me burning about 7 cal/min.

You can buy Gel seats and biking shorts that have extra padding.

I started a spinning class a few weeks ago and I am sure MFPals are about tired of hearing about my sore backside. I bought a gel seat which helps some, I plan to get the padded shorts too and use both. I do use a HRM and burn about 500 calories for the 55-65 minutes I am moving, which is the main reason I push through it. While the soreness after has become "less" the pain during, well I have not come close to being used to that, my instructor said that would take a while, I could tell he meant a long while. A HRM is a great investment, and so is a gel seat, if I thought I could get two to stay on I would consider that too.

I will have to get one I think. Thank you for your input and I guess I should have added my info. Sorry. I'm currently at 294 and I am riding inbetween 15-18 mph according to my bike anyway. I never ever let it get down under 15.

If you can pedal for that long at that speed you need to up the resistance. I'm a cyclist and riding at 15 to 18 mph is really booking it!

I would also consider trying a workout on a different bike just to make sure you are hitting the speed that you think you are OR get a reliable HRM to help you calculate. I am a pretty well-rounded cyclist (stationary,, leisure road and spin classes) and I usually do a 12-14mph with 14-16 mph spurts and burn around 500-600 cal per hour. *Caveat: on a SPIN bike, you will reach numbers like 20mph but that is with little resistance. Not the same as a "road" bike or a stationary bike on level 3-5, which is the equivalent to a road bike.* No offense, but I don't think you're hitting those numbers yet and to be misled to think you are is going to lead you to overeat those cals back and then get frustrated at lack of weight loss.

Yes, buy some padded shorts---canari is a nice affordable brand and if you buy the "liners" you can put them underneath your workout shorts. Then you are prepared if you do end up doing road cycling, in which case, longer rides will *almost always* make your butt sore no matter what.

Glad you find something you enjoy! Once your butt gets the memo, it is an exercise you can enjoy year round and stick with for the rest of your life!

That's why I have a recumbant bike. As far as the calories I burn about 100 per 20 min. It's really not a big burn but it's a good little workout for my rest days.

Recumbent bikes are a big girl's best friend. This is TMI, but on a regular stationary (or REAL bike), the seat makes my hoo-ha fall asleep. Unfortunately, the recumbent bike makes my rear fall asleep, but it's still much more supportive and comfortable.

With that being said, OP....you need to consider your weight when calculating calories. Stationary bikes calculate a perfectly fit physique. The more you weigh, the more calories you are going to burn. A 45 min moderate workout was burning me 652 cals. I dropped 1.2 lbs. tonight and now that same workout burns me 649 cals. The more you lose, the harder you will have to work to burn the same amount of calories.

Everyone here can tell you what THEY are burning during a similar workout, but you are unique...just like everyone else!

So yes, you should feel proud that you are working so hard and burning up that fat! But, if you start to plateau, you might want to consider eating some of those "workout" calories. Unless you've not been journaling your daily food intake or chowing down on the wrong things, a plateau almost always mean you aren't eating enough calories. Be sure not to send your metabolism into the toliet by overworking/under eating. It's the biggest mistake we big girls like to make.

As far as the butt numbness, I imagine it'll go away the thinner we get. I'm also going to try a memory foam cushion to see if that helps.

I have a "Total Pillow"....looks like a donut. I have plastic over it because it has a fiber cover and I lay a towel over that. Really made a difference.

But if you went to a medical store and bought one of those inflatable donuts, that should do the trick.

My bike has a calorie counter on it and its pretty accurate.

ETA: I should add that I have a recumbent stationary bike with a regular seat and back. If you have a bike with a regular bicycle style seat, my suggestion wouldn't help.

Everyone gave great advice. One thing you should check.is.if your bike.us calculating in miles or kilometers. I thought my bike was miles.until.my husband told,me it's kilometers not miles.

I ride an old Schwinn Airdyne. It has a wider seat and hasn't given me any problems. Maybe your seat height is wrong. Adjust it and give it a try.