A method for determining one or more cardiovascular quantities, comprising at least vascular stiffness of a vessel of a person, the vessel being enclosed by tissue having a skin surface, the method comprising - positioning a first electrode at a first electrode position on the skin surface and positioning a second electrode at a second electrode position on the skin surface such that lines of flux between the first electrode and the second electrode extend through the vessel, and the first electrode position and the second electrode position are positions on opposite sides of a limb of the person, - recording, as a first sensor signal, changes in capacitance, synchronous with a pulse, between the first electrode and the second electrode, - determining the distension of the vessel based on the first sensor signal, positioning a third electrode at a third electrode position on the skin surface, such that lines of flux between the third electrode and the second electrode extend through the vessel, wherein the third electrode position is at a predetermined distance (d ppv) from the first electrode position, upstream or downstream the vessel, - recording as a second sensor signal, changes in capacitance, synchronous with the pulse, between the second electrode and the third electrode, such that the changes in capacitance in the first and second sensor signals are temporally displaced with a delay ( τ, 108), - estimating the delay ( τ, 108) based on the first sensor signal and the second sensor signal, - determining a pulse propagation velocity ( v) by calculating the predetermined distance (d ppv) divided by the delay ( τ, 108) between the first sensor signal and the second sensor signal, - determining the vascular stiffness of the vessel based on the pulse propagation velocity ( v), and - determining blood pressure change based on the vascular stiffness of the vessel and the determination of the distension of the vessel. - positioning a first electrode at a first electrode position on the skin surface and positioning a second electrode at a second electrode position on the skin surface such that lines of flux between the first electrode and the second electrode extend through the vessel, and the first electrode position and the second electrode position are positions on opposite sides of a limb of the person, - recording, as a first sensor signal, changes in capacitance, synchronous with a pulse, between the first electrode and the second electrode, - determining the distension of the vessel based on the first sensor signal, positioning a third electrode at a third electrode position on the skin surface, such that lines of flux between the third electrode and the second electrode extend through the vessel, wherein the third electrode position is at a predetermined distance (d ppv) from the first electrode position, upstream or downstream the vessel, - recording as a second sensor signal, changes in capacitance, synchronous with the pulse, between the second electrode and the third electrode, such that the changes in capacitance in the first and second sensor signals are temporally displaced with a delay ( τ, 108), - estimating the delay ( τ, 108) based on the first sensor signal and the second sensor signal, - determining a pulse propagation velocity ( v) by calculating the predetermined distance (d ppv) divided by the delay ( τ, 108) between the first sensor signal and the second sensor signal, - determining the vascular stiffness of the vessel based on the pulse propagation velocity ( v), and - determining blood pressure change based on the vascular stiffness of the vessel and the determination of the distension of the vessel.