diff --git a/src/systems/include/mp-units/systems/si/unit_symbols.h b/src/systems/include/mp-units/systems/si/unit_symbols.h
index ad004f8c..5f551f00 100644
--- a/src/systems/include/mp-units/systems/si/unit_symbols.h
+++ b/src/systems/include/mp-units/systems/si/unit_symbols.h
@@ -40,6 +40,7 @@ inline constexpr auto fm = femto<metre>;
 inline constexpr auto pm = pico<metre>;
 inline constexpr auto nm = nano<metre>;
 inline constexpr auto um = micro<metre>;
+inline constexpr auto µm = micro<metre>;
 inline constexpr auto mm = milli<metre>;
 inline constexpr auto cm = centi<metre>;
 inline constexpr auto dm = deci<metre>;
@@ -66,6 +67,7 @@ inline constexpr auto fs = femto<second>;
 inline constexpr auto ps = pico<second>;
 inline constexpr auto ns = nano<second>;
 inline constexpr auto us = micro<second>;
+inline constexpr auto µs = micro<second>;
 inline constexpr auto ms = milli<second>;
 inline constexpr auto cs = centi<second>;
 inline constexpr auto ds = deci<second>;
@@ -93,6 +95,7 @@ inline constexpr auto fg = femto<gram>;
 inline constexpr auto pg = pico<gram>;
 inline constexpr auto ng = nano<gram>;
 inline constexpr auto ug = micro<gram>;
+inline constexpr auto µg = micro<gram>;
 inline constexpr auto mg = milli<gram>;
 inline constexpr auto cg = centi<gram>;
 inline constexpr auto dg = deci<gram>;
@@ -119,6 +122,7 @@ inline constexpr auto fA = femto<ampere>;
 inline constexpr auto pA = pico<ampere>;
 inline constexpr auto nA = nano<ampere>;
 inline constexpr auto uA = micro<ampere>;
+inline constexpr auto µA = micro<ampere>;
 inline constexpr auto mA = milli<ampere>;
 inline constexpr auto cA = centi<ampere>;
 inline constexpr auto dA = deci<ampere>;
@@ -145,6 +149,7 @@ inline constexpr auto fK = femto<kelvin>;
 inline constexpr auto pK = pico<kelvin>;
 inline constexpr auto nK = nano<kelvin>;
 inline constexpr auto uK = micro<kelvin>;
+inline constexpr auto µK = micro<kelvin>;
 inline constexpr auto mK = milli<kelvin>;
 inline constexpr auto cK = centi<kelvin>;
 inline constexpr auto dK = deci<kelvin>;
@@ -171,6 +176,7 @@ inline constexpr auto fmol = femto<mole>;
 inline constexpr auto pmol = pico<mole>;
 inline constexpr auto nmol = nano<mole>;
 inline constexpr auto umol = micro<mole>;
+inline constexpr auto µmol = micro<mole>;
 inline constexpr auto mmol = milli<mole>;
 inline constexpr auto cmol = centi<mole>;
 inline constexpr auto dmol = deci<mole>;
@@ -197,6 +203,7 @@ inline constexpr auto fcd = femto<candela>;
 inline constexpr auto pcd = pico<candela>;
 inline constexpr auto ncd = nano<candela>;
 inline constexpr auto ucd = micro<candela>;
+inline constexpr auto µcd = micro<candela>;
 inline constexpr auto mcd = milli<candela>;
 inline constexpr auto ccd = centi<candela>;
 inline constexpr auto dcd = deci<candela>;
@@ -223,6 +230,7 @@ inline constexpr auto frad = femto<radian>;
 inline constexpr auto prad = pico<radian>;
 inline constexpr auto nrad = nano<radian>;
 inline constexpr auto urad = micro<radian>;
+inline constexpr auto µrad = micro<radian>;
 inline constexpr auto mrad = milli<radian>;
 inline constexpr auto crad = centi<radian>;
 inline constexpr auto drad = deci<radian>;
@@ -249,6 +257,7 @@ inline constexpr auto fsr = femto<steradian>;
 inline constexpr auto psr = pico<steradian>;
 inline constexpr auto nsr = nano<steradian>;
 inline constexpr auto usr = micro<steradian>;
+inline constexpr auto µsr = micro<steradian>;
 inline constexpr auto msr = milli<steradian>;
 inline constexpr auto csr = centi<steradian>;
 inline constexpr auto dsr = deci<steradian>;
@@ -275,6 +284,7 @@ inline constexpr auto fHz = femto<hertz>;
 inline constexpr auto pHz = pico<hertz>;
 inline constexpr auto nHz = nano<hertz>;
 inline constexpr auto uHz = micro<hertz>;
+inline constexpr auto µHz = micro<hertz>;
 inline constexpr auto mHz = milli<hertz>;
 inline constexpr auto cHz = centi<hertz>;
 inline constexpr auto dHz = deci<hertz>;
@@ -301,6 +311,7 @@ inline constexpr auto fN = femto<newton>;
 inline constexpr auto pN = pico<newton>;
 inline constexpr auto nN = nano<newton>;
 inline constexpr auto uN = micro<newton>;
+inline constexpr auto µN = micro<newton>;
 inline constexpr auto mN = milli<newton>;
 inline constexpr auto cN = centi<newton>;
 inline constexpr auto dN = deci<newton>;
@@ -332,6 +343,7 @@ inline constexpr auto fPa = femto<pascal>;
 inline constexpr auto pPa = pico<pascal>;
 inline constexpr auto nPa = nano<pascal>;
 inline constexpr auto uPa = micro<pascal>;
+inline constexpr auto µPa = micro<pascal>;
 inline constexpr auto mPa = milli<pascal>;
 inline constexpr auto cPa = centi<pascal>;
 inline constexpr auto dPa = deci<pascal>;
@@ -362,6 +374,7 @@ inline constexpr auto fJ = femto<joule>;
 inline constexpr auto pJ = pico<joule>;
 inline constexpr auto nJ = nano<joule>;
 inline constexpr auto uJ = micro<joule>;
+inline constexpr auto µJ = micro<joule>;
 inline constexpr auto mJ = milli<joule>;
 inline constexpr auto cJ = centi<joule>;
 inline constexpr auto dJ = deci<joule>;
@@ -388,6 +401,7 @@ inline constexpr auto fW = femto<watt>;
 inline constexpr auto pW = pico<watt>;
 inline constexpr auto nW = nano<watt>;
 inline constexpr auto uW = micro<watt>;
+inline constexpr auto µW = micro<watt>;
 inline constexpr auto mW = milli<watt>;
 inline constexpr auto cW = centi<watt>;
 inline constexpr auto dW = deci<watt>;
@@ -414,6 +428,7 @@ inline constexpr auto fC = femto<coulomb>;
 inline constexpr auto pC = pico<coulomb>;
 inline constexpr auto nC = nano<coulomb>;
 inline constexpr auto uC = micro<coulomb>;
+inline constexpr auto µC = micro<coulomb>;
 inline constexpr auto mC = milli<coulomb>;
 inline constexpr auto cC = centi<coulomb>;
 inline constexpr auto dC = deci<coulomb>;
@@ -440,6 +455,7 @@ inline constexpr auto fV = femto<volt>;
 inline constexpr auto pV = pico<volt>;
 inline constexpr auto nV = nano<volt>;
 inline constexpr auto uV = micro<volt>;
+inline constexpr auto µV = micro<volt>;
 inline constexpr auto mV = milli<volt>;
 inline constexpr auto cV = centi<volt>;
 inline constexpr auto dV = deci<volt>;
@@ -466,6 +482,7 @@ inline constexpr auto fF = femto<farad>;
 inline constexpr auto pF = pico<farad>;
 inline constexpr auto nF = nano<farad>;
 inline constexpr auto uF = micro<farad>;
+inline constexpr auto µF = micro<farad>;
 inline constexpr auto mF = milli<farad>;
 inline constexpr auto cF = centi<farad>;
 inline constexpr auto dF = deci<farad>;
@@ -509,6 +526,32 @@ inline constexpr auto Yohm = yotta<si::ohm>;
 inline constexpr auto Rohm = ronna<si::ohm>;
 inline constexpr auto Qohm = quetta<si::ohm>;
 
+inline constexpr auto qΩ = quecto<si::ohm>;
+inline constexpr auto rΩ = ronto<si::ohm>;
+inline constexpr auto yΩ = yocto<si::ohm>;
+inline constexpr auto zΩ = zepto<si::ohm>;
+inline constexpr auto aΩ = atto<si::ohm>;
+inline constexpr auto fΩ = femto<si::ohm>;
+inline constexpr auto pΩ = pico<si::ohm>;
+inline constexpr auto nΩ = nano<si::ohm>;
+inline constexpr auto µΩ = micro<si::ohm>;
+inline constexpr auto mΩ = milli<si::ohm>;
+inline constexpr auto cΩ = centi<si::ohm>;
+inline constexpr auto dΩ = deci<si::ohm>;
+inline constexpr auto Ω = si::ohm;
+inline constexpr auto daΩ = deca<si::ohm>;
+inline constexpr auto hΩ = hecto<si::ohm>;
+inline constexpr auto kΩ = kilo<si::ohm>;
+inline constexpr auto MΩ = mega<si::ohm>;
+inline constexpr auto GΩ = giga<si::ohm>;
+inline constexpr auto TΩ = tera<si::ohm>;
+inline constexpr auto PΩ = peta<si::ohm>;
+inline constexpr auto EΩ = exa<si::ohm>;
+inline constexpr auto ZΩ = zetta<si::ohm>;
+inline constexpr auto YΩ = yotta<si::ohm>;
+inline constexpr auto RΩ = ronna<si::ohm>;
+inline constexpr auto QΩ = quetta<si::ohm>;
+
 inline constexpr auto qS = quecto<siemens>;
 inline constexpr auto rS = ronto<siemens>;
 inline constexpr auto yS = yocto<siemens>;
@@ -518,6 +561,7 @@ inline constexpr auto fS = femto<siemens>;
 inline constexpr auto pS = pico<siemens>;
 inline constexpr auto nS = nano<siemens>;
 inline constexpr auto uS = micro<siemens>;
+inline constexpr auto µS = micro<siemens>;
 inline constexpr auto mS = milli<siemens>;
 inline constexpr auto cS = centi<siemens>;
 inline constexpr auto dS = deci<siemens>;
@@ -544,6 +588,7 @@ inline constexpr auto fWb = femto<weber>;
 inline constexpr auto pWb = pico<weber>;
 inline constexpr auto nWb = nano<weber>;
 inline constexpr auto uWb = micro<weber>;
+inline constexpr auto µWb = micro<weber>;
 inline constexpr auto mWb = milli<weber>;
 inline constexpr auto cWb = centi<weber>;
 inline constexpr auto dWb = deci<weber>;
@@ -570,6 +615,7 @@ inline constexpr auto fT = femto<tesla>;
 inline constexpr auto pT = pico<tesla>;
 inline constexpr auto nT = nano<tesla>;
 inline constexpr auto uT = micro<tesla>;
+inline constexpr auto µT = micro<tesla>;
 inline constexpr auto mT = milli<tesla>;
 inline constexpr auto cT = centi<tesla>;
 inline constexpr auto dT = deci<tesla>;
@@ -596,6 +642,7 @@ inline constexpr auto fH = femto<henry>;
 inline constexpr auto pH = pico<henry>;
 inline constexpr auto nH = nano<henry>;
 inline constexpr auto uH = micro<henry>;
+inline constexpr auto µH = micro<henry>;
 inline constexpr auto mH = milli<henry>;
 inline constexpr auto cH = centi<henry>;
 inline constexpr auto dH = deci<henry>;
@@ -622,6 +669,7 @@ inline constexpr auto flm = femto<lumen>;
 inline constexpr auto plm = pico<lumen>;
 inline constexpr auto nlm = nano<lumen>;
 inline constexpr auto ulm = micro<lumen>;
+inline constexpr auto µlm = micro<lumen>;
 inline constexpr auto mlm = milli<lumen>;
 inline constexpr auto clm = centi<lumen>;
 inline constexpr auto dlm = deci<lumen>;
@@ -648,6 +696,7 @@ inline constexpr auto flx = femto<lux>;
 inline constexpr auto plx = pico<lux>;
 inline constexpr auto nlx = nano<lux>;
 inline constexpr auto ulx = micro<lux>;
+inline constexpr auto µlx = micro<lux>;
 inline constexpr auto mlx = milli<lux>;
 inline constexpr auto clx = centi<lux>;
 inline constexpr auto dlx = deci<lux>;
@@ -674,6 +723,7 @@ inline constexpr auto fBq = femto<becquerel>;
 inline constexpr auto pBq = pico<becquerel>;
 inline constexpr auto nBq = nano<becquerel>;
 inline constexpr auto uBq = micro<becquerel>;
+inline constexpr auto µBq = micro<becquerel>;
 inline constexpr auto mBq = milli<becquerel>;
 inline constexpr auto cBq = centi<becquerel>;
 inline constexpr auto dBq = deci<becquerel>;
@@ -700,6 +750,7 @@ inline constexpr auto fGy = femto<gray>;
 inline constexpr auto pGy = pico<gray>;
 inline constexpr auto nGy = nano<gray>;
 inline constexpr auto uGy = micro<gray>;
+inline constexpr auto µGy = micro<gray>;
 inline constexpr auto mGy = milli<gray>;
 inline constexpr auto cGy = centi<gray>;
 inline constexpr auto dGy = deci<gray>;
@@ -726,6 +777,7 @@ inline constexpr auto fSv = femto<sievert>;
 inline constexpr auto pSv = pico<sievert>;
 inline constexpr auto nSv = nano<sievert>;
 inline constexpr auto uSv = micro<sievert>;
+inline constexpr auto µSv = micro<sievert>;
 inline constexpr auto mSv = milli<sievert>;
 inline constexpr auto cSv = centi<sievert>;
 inline constexpr auto dSv = deci<sievert>;
@@ -752,6 +804,7 @@ inline constexpr auto fkat = femto<katal>;
 inline constexpr auto pkat = pico<katal>;
 inline constexpr auto nkat = nano<katal>;
 inline constexpr auto ukat = micro<katal>;
+inline constexpr auto µkat = micro<katal>;
 inline constexpr auto mkat = milli<katal>;
 inline constexpr auto ckat = centi<katal>;
 inline constexpr auto dkat = deci<katal>;