GPA（平均成绩点数）是学校录取和发放奖学金的基本标准之一，体现了申请人的学术背景及专业能力。然而对绝大多数中国学生来说，如何准确地将国内大学成绩换算成美国大学所接受的GPA却是一件头痛的事，并对申请者选择适合自己的学校造成了一定的困难。相信有很多申请者在申请较好的学校时，无法确定自己的GPA是否达到了学校的录取标准，从而白白浪费了申请费。
目前很多美国大学由于财政收缩，不再对学生的成绩进行评估，而是要求学生将成绩送到一些专业评估机构去；这些机构对学生成绩的最终评估结果，也为所有大学认可。因此在申请前先将自己的成绩送到这些评估机构，得到自己准确的GPA，对申请中大学的选择这一环节无疑是非常有帮助的。而作为专业的学术评估机构，它们对学生成绩的评估，肯定比申请时学校处理堆成山的学生材料时做出的学术评估来得客观、细致。
一些主要学术评估机构为：
Center of Applied Research, Evaluations & Educations, Inc.
P.O. Box 20348
Long Beach, CA 90801
Phone: 562.4430.8215
email: evalcaree@earthlink.net
Educational Credential Evaluators, Inc.
P.O. Box 514070
Milwaukee, WI 53203-3470
Phone: 414.289.3400
Fax: 414.289.3411
email: eval@ece.org
http://www.ece.org
Education Evaluators International, Inc.
P.O. Box 5397
Los Alamitos, CA 90720-5397
Phone: 562.431.2187
Fax: 561.493.5021
email: Gary@educei.com
Education International, Inc.
29 Denton Road
Wellesley, MA 02482
Phone: 781.235-7425
Fax: 781.235.6831
email: edint@gis.net
http://www.educationinternational.org
Educational Perspectives, nfp.
P.O. Box 618056
Chicago, IL 60661-8056
Phone: 312.421.9300
Fax: 312.421.9353
email: info@educational-perspectives.org
http://www.educational-perspectives.org
Educational Records Evaluation Services, Inc.
601 University Avenue, Suite 127
Sacramento, CA 95825
Phone: 916.921.0790
Fax: 916.921.0793
email: edu@eres.com
http://www.eres.com
Evaluation Service, Inc.
P.O. Box 85
Hopewell Jct., NY 12533
Phone: 845.223.6455
Fax: 845.223.6454
email: esi2@frontiermet.net
http://www.evaluationservice.net
Foreign Academic Credential Service, Inc.
P.O. Box 400
Glen Carbon, IL 62034
Phone: 618.656.5291
Fax: 618.656.5292
http://www.facsusa.com
Foundation for International Services, Inc.
21540 30th Dr. SE, Suite #320
Bothell, WA 98021
Phone: 425.487.2245
Fax: 425.487.1989
email: info@fis-web.com
http://www.fis-web.com
Global Services Associates, Inc.
2554 Lincoln Boulevard, #445
Marina del Rey, CA 90291
Phone: 310.828.5709
Fax: 310.828.5709
email: info@globaleval.org
http://www.globaleval.org
International Consultants of Delaware, Inc.
625 Barksdale Road, Suite 109
Newark, DE 19711-3258
Phone: 302.737.8715
Fax: 302.737-8756
email: ice@icdel.com
http://icdel.com
International Education Research Foundation, Inc.
P.O. Box 3665
Culver City, CA 90231-5665
Phone: 310.258.9451
Fax: 310.342.7086
email: information@ierf.org
http://www.ierf.org
Josef Silny @ Associates, Inc.
International Education Consultants
7101 S.W. 102 Avenue
Miami, FL 33173
Phone: 305.273.1616
Fax: 305.273.1338
Fax 305.273.1984 (Translations)
email: info@jsilny.com
http://www.jsilny.com
SpanTran Educational Services, Inc.
7211 Regency Square Blvd., Suite 205
Houston, TX 77036-3197
Phone: 713.266-8805
Fax: 713.789-6022
email: info@spantran-edu.org
http://www.spantran-edu.org
World Education Services, Inc.
P.O. Box 5087
Bowling Green Station
New York, NY 10274-5087
Phone: 212.966.6311
Fax: 212.739.6100
email: info@wes.org
http://www.wes.org
