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Kendo Shinai Weights & Measures

As a note the recommended length and weight for shinai are:

- Women 38 inches 440 grams.
- Men 39 inches 510 grams.

The Wikipedia shinai page lists the following tables:

Regulations

In kendo competitions that follow the FIK rules, there are regulated weights and lengths for the use of shinai. 
Table A. FIK Specifications for competition use of one Shinai (Itto).
SpecificationGenderJunior High School (12–15 yrs)Senior High School (15–18 yrs)University students and Adults (18yrs+)
Maximum lengthMale & female114cm117cm120cm
Minimum weightMale440g480g510g
Female400g420g440g
Minimum diameter of sakigawaMale25mm26mm26mm
Female24mm25mm25mm
Minimum length of sakigawaMale and Female50mm50mm50mm
Shinai are weighed complete with leather fittings, but without tsuba or tsuba-dome. The full length is measured. Maximum diameter of the tsuba is 9cm.
Table B. FIK Specifications for competition use of two Shinai (Nito).
SpecificationGenderDaito (long shinai)Shoto (short shinai)
Maximum lengthMale & female114cm62cm
WeightMale440g minimum280–300g maximum
Female400g minimum250–280g maximum
Minimum diameter of sakigawaMale25mm24mm
Female24mm24mm
Shinai are weighed complete with leather fittings, but without tsuba or tsuba-dome. The full length is measured. Maximum diameter of the tsuba is 9cm.
Commercial Shinai Sizing
SizeLengthSizeLength
2836"92 cm3644"112 cm
3038"97 cm3745"114 cm
3240"102 cm3846"117 cm
3442"107 cm3947"120 cm

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