Here is a physics calculator ( a simplified version of LISE++).

The mass is from AME16. by 1 amu = 931.4940954 [MeV/c^2]

note1: unit [Tm]

F_{B} = qvB = mv^{2}/r.
so qB = mv/r. We use p=mv, and then

qB = p/r. After rearranging the terms,

Br = p/q

Br = k * p/q, in unit of [Tm]

p in unit of GeV/c, q is charge in unit of proton charge. i.e. for 4He, q = 2.

k = 10^{9}/299792458.

note2: Q value for the ground state: 1+2->3+4

qvalue = (m1+m2-m3-m4)*c^{2}.

F

qB = p/r. After rearranging the terms,

Br = p/q

Br = k * p/q, in unit of [Tm]

p in unit of GeV/c, q is charge in unit of proton charge. i.e. for 4He, q = 2.

k = 10

note2: Q value for the ground state: 1+2->3+4

qvalue = (m1+m2-m3-m4)*c