What is the dimensional formula of Spring Constant (K)? Share with your friends Share 40 Jyoti Pant answered this Using F=kxk=F/xDimension formula for spring constant k: 73 View Full Answer Siddhant Das answered this hi ! This can be worked out by using the spring force formula i.e. F = kx . This gives k = F/x.Dimensionally [k] = [F]/[x] = [M1L1T-2]/[MoL1To] = [M1LoT-2] (ans). 55 Lavanya answered this thanks 20