Two to three hours.
The time taken to cremate will depend on many factors including body mass, bone density and the materials from which the coffin is manufactured. The average time for an adult cremation is 90 minutes at a temperature of between 800 and 1000 degree Celsius.  For an average size adult, the initial cremation takes about 21/2 to 3 hours with an operating temperature between 1500-1600 degrees F. In addition the “cool down” cycle, which allows for the removal of the cremated remains after cremation, may vary depending on the type of cremation unit. Typically, cremation may be arranged for a savings of 75% to 80% when compared to a traditional funeral service and burial using average merchandise (embalming, casket, vault, grave, opening/closing fee, monument, tent, etc.). An average human body takes from two to three hours to burn completely and will produce an average of 3 to 9 pounds (1.4 to 4.1 kilograms) of ash. The amount of ash depends usually on the bone structure of the person and not so much their weight [source: Ellenberg ].  The cost tends to vary because it depends on factors like the type of cremation you choose, your pet’s weight, your location, and so on. Smaller animals like birds, rabbits, hamsters, ferrets, Guinea pigs, small-breed dogs and cats are usually incinerated in a short time, that is, within 30-45 minutes.  Q: How long does it take to cremate a body? A: On the surface, this is a simple question, but answering it requires an understanding of the factors that influence cremation time. First, let's assume that by cremation time, we mean the time it takes to physically reduce the body and casket or container. The cost of pet cremation depends on location, where the cremation is done, and time of cremation. The American Humane Society’s cost for cremation of 22.5 kg (50 lb). or less pet is $110 while 23 kg (51 lb). or more is $145. The cremated remains are available for the owner to pick up in seven to ten business days. The cremation rate varies considerably across countries with Japan reporting a 99% cremation rate while Poland reported a rate of 6.7% in 2008. Cremation accounts for about 20% of the $13.4 billion funeral industry in the U.S. For example, in the retort we operate, the first cremation of the day takes about two hours and the second takes about an hour. That is because the retort already has a high internal temperature at the beginning of the second cremation. Hmmm. From less than one hour to three hours.  Depends on many things... A pire cremation will take longer than an incinerator since the pire will start out with big flames but will actually be qutie cool, it will take time to get hot and its the heat that does most the cremation not the flames. He said it depends on the size of the body. If the person was big with a lot of fat, it will take longer. But it can vary from 2 hours to 4 hours. Source(s): my husband, who used to work in a funeral home where they did cremations. As a result, actual cremation times vary from 60 minutes to more than 5 hours. In the cremation profession, it is widely stated that it takes about 2 hours to cremate an average body of 150 pounds in a cardboard cremation container. A: On the surface, this is a simple question, but answering it requires an understanding of the factors that influence cremation time. First, let's assume that by cremation time, we mean the time it takes to physically reduce the body and casket or The factors that affect cremation time are the size of the body (weight), the percentage of body fat to lean tissue or muscle, the type of container or casket, the performance standards of the cremation equipment, and whether it is the first cremation of the day, the second, the third and so on. A: On the surface, this is a simple question, but answering it requires an understanding of the factors that influence cremation time. First, let's assume that by cremation time, we mean the time it takes to physically reduce the body and casket or container.
http://www.northernsuburbscrem.com.au/memorials/cremation-faq http://www.cremationoptionsinc.com/faq/ http://science.howstuffworks.com/cremation1.htm http://www.cremationresource.org/pets/pet-cremation-faq.html https://www.iccfa.com/cremation/support/how-long-does-cremation-take https://en.wikipedia.org/wiki/Cremation http://www.nizkor.org/hweb/camps/auschwitz/crematoria/cremation-009.html https://answers.yahoo.com/question/index?qid=20090101191457AARP5kl https://www.iccfa.com/cremation/support/how-long-does-cremation-take https://www.iccfa.com/cremation/support/how-long-does-cremation-take
how long does the average cremation take