Each unit in the same measurement group is compatible with unit conversions to other units in the same measurement group. Type in “to [unit]” in a formula field to convert from one unit in a measurement group to another unit in the same measurement group.
Measurement Group | Units |
CURRENT | A, amp, ampere, amperes, amps |
LENGTH | angstrom, angstroms, ch, chain, chains, feet, foot, ft, in, inch, inches, li, linear_foot, linear_feet, linear_ft, link, links, m, meter, meters, mi, mil, mile, miles, rd, rod, rods, yard, yards, yd |
MASS | bucket32lbs, bucket_32_lbs, cwt, dr, dram, drams, g, gr, grain, grains, gram, grams, hundredweight, hundredweights, lb, lbm, lbs, ounce, ounces, oven_dry_ton, oven_dry_tons, oz, poundmass, poundmasses, stick, sticks, stone, t, ton, tonne, tonnes, tons |
TEMPERATURE | K, celsius, degC, degF, degR, fahrenheit, kelvin, rankine |
TIME | centuries, century, day, days, decade, decades, h, hour, hours, hr, hrs, millennia, millennium, min, mins, minute, minutes, month, months, s, sec, second, seconds, secs, week, weeks, year, years |
BACTERIA_COUNT | CFU, CNT, MPN, bacteria_cnt, bacteria_count, cfu, col, colonies, colony_forming_units, most_probable_number, mpn |
CURRENCY_EURO | EURO |
CURRENCY_USD | USD |
FIBER_CONCENTRATION | FL, MFL, fibers_per_liter, million_fibers_per_liter |
PERCENT_SURVIVAL | percent_survival |
PERCENT_VOLUME | PPM_vol, PPM_volume, percent_vol, percent_volume, percent_volume_per_volume, volume_concentration |
PERCENT_WEIGHT | PPM_weight, percent_weight, percent_weight_per_weight, percent_wt, weight_concentration |
PH | SU |
RADIOACTIVITY | Bq, Ci, becquerel, curie, curies |
TOXICITY | TUa |
TURBIDITY | NTU |
AMOUNT_OF_SUBSTANCE | mol, mole, moles |
ANGLE | arcmin, arcminute, arcminutes, arcsec, arcsecond, arcseconds, cycle, cycles, deg, degree, degrees, grad, gradian, gradians, rad, radian, radians |
BIT | B, b, bit, bits, byte, bytes |
LUMINOUS_INTENSITY | candela, cd |
ENERGY | BTU, BTUs, J, Wh, eV, electronvolt, electronvolts, erg, joule, joules, therm, therms, thm |
FREQUENCY | Hz, hertz |
NONE (no unit; unitless) | [empty; no unit selection] |
POWER | VA, VAR, W, horsepower, hp, watt, watts |
PRESSURE | PSI, Pa, atm, bar, cmH2O, cmh2o, inH2O, inHg, in_Hg, in_mercury, in_of_mercury, in_water, mmH2O, mmHg, mmh2o, mmhg, psi, torr |
SURFACE | SF, acre, acres, feet2, ft2, hectare, hectares, m2, sf, sq_feet, sq_foot, sq_ft, sqch, sqfeet, sqft, sqin, sqmi, sqmil, sqmile, sqmiles, sqrd, sqyard, sqyd |
VOLUME | CF, L, Mgal, bbl, beerbarrel, beerbarrels, cc, cf, cp, cubic_feet, cubic_foot, cubic_ft, cuft, cuin, cup, cups, cuyd, drop, drum55gal, drum_55_gal, drum_55_gallons, fl_oz, fldr, floz, fluid_ounce, fluid_ounces, fluiddram, fluiddrams, fluidounce, fluidounces, ft3, gal, gallon, gallons, gi, gill, gills, gtt, gtts, hogshead, hogsheads, l, liter, liters, litre, litres, lt, m3, minim, minims, obl, oilbarrel, oilbarrels, pint, pints, pt, qt, quart, quarts, tablespoon, tablespoons, teaspoon, teaspoons |
BACTERIA_COUNT_PER_MASS | CFU_per_g, CFU_per_gram, CNT_per_g, CNT_per_gram, MPN_per_g, MPN_per_gram, cfu_per_g, cfu_per_gram, cnt_per_g, cnt_per_gram, col_per_g, col_per_gram, coliforms_per_g, coliforms_per_gram, mpn_per_g, mpn_per_gram |
BACTERIA_COUNT_PER_VOLUME | CFU_per_100mL, CFU_per_100ml, CNT_per_100mL, CNT_per_100ml, MPN_per_100mL, MPN_per_100ml, cfu_per_100mL, cfu_per_100ml, cnt_per_100mL, cnt_per_100ml, col_per_100mL, col_per_100ml, colonies_per_100mL, colonies_per_100ml, mpn_per_100mL, mpn_per_100ml |
CONCENTRATION_SOLIDS_IN_LIQUID | PPB, PPM, PPT, mass_concentration, percent_mass_in_water, percent_weight_per_volume |
LENGTH_SQUARE_ROOT | sqrt_ft |
ELECTRIC_CAPACITANCE | F, farad, farads |
ELECTRIC_CHARGE | C, coulomb, coulombs |
ELECTRIC_CONDUCTANCE | S, mho, mhos, siemens |
ELECTRIC_INDUCTANCE | H, henry |
ELECTRIC_POTENTIAL | V, volt, volts |
ELECTRIC_RESISTANCE | ohm, ohms |
FORCE | N, dyn, dyne, kgf, kilogramforce, kip, kips, lbf, newton, poundforce |
MAGNETIC_FLUX | Wb, weber, webers |
MAGNETIC_FLUX_DENSITY | T, tesla, teslas |
NOTES: | |
All time units are based on the Julian year, with one month being 1/12th of a Julian year, a year being one Julian year, a decade being 10 Julian years, a century being 100, and a millennium being 1000. | |
Surface and volume units can alternatively be expressed in terms of length units raised to a power, for example, 100 in^2 instead of 100 sqin. | |
Most units can also be written with a prefix, e.g., km, kilometer, etc. See "Prefixes" below. |
Unit Prefixes:
In a formula field, use the value in the “Abbreviation” column in front of typing in the unit to apply the prefix
The following decimal prefixes are available:
Name | Abbreviation | Value |
deca | da | 1E+01 |
hecto | h | 1E+02 |
kilo | k | 1E+03 |
mega | M | 1E+06 |
giga | G | 1E+09 |
tera | T | 1E+12 |
peta | P | 1E+15 |
exa | E | 1E+18 |
zetta | Z | 1E+21 |
yotta | Y | 1E+24 |
deci | d | 1E-01 |
centi | c | 1E-02 |
milli | m | 1E-03 |
micro | u | 1E-06 |
nano | n | 1E-09 |
pico | p | 1E-12 |
femto | f | 1E-15 |
atto | a | 1E-18 |
zepto | z | 1E-21 |
yocto | y | 1E-24 |
Roman numeral prefixes
Abbreviation | Value | Example |
C | 1e2 | CCF, CSF |
M | 1e3 | MCF, MSF |
MM | 1e6 | MMCF, MMSF |
B | 1e9 | BCF, BSF |
T | 1e12 | TCF, TSF |
Q | 1e15 | QCF, QSF |
Special prefix for cubic feet
Name | Abbreviation | Value | Example |
Standard | S | 1 | SCF |
Prefixes for some imperial units
Name | Abbreviation | Value | Example |
Thousand | thousand_ | 1e3 | thousand_ft, thousand_gal, thousand_ft2, thousand_ft3, thousand_cfu |
Million | million_ | 1e6 | million_ft, million_gal, million_ft2, million_ft3, million_cfu |
Special Percentage Units - Unit Conversions:
As explained above, “%” is not available in Mapistry. To treat values as a “%” in formulas, you can either divide by 100 to get the value as an equivalent decimal before using the value in the formula, or you can type in “%” to the formula to divide by 100.
You may see the following percentage-type units available in Mapistry.
Percentage-type Units:
- % survival
- % wt
- % v/v
- % mass in water
- % wt/vol
When using any of these units, keep in mind the following:
- Unit Conversions: Unit conversions of values in these units (ex: converting from % wt/vol to mg/L) will happen as expected - nothing special has to be done! There is no need to apply the “%” symbol to formulas where you convert one of these units to a compatible one. In the table above, you’ll see which units each percentage-type unit can convert to.
- Formulas: When you use an item with one of these units in a formula field to calculate the actual percentage-type value, apply the % sign to make the value operate as a %..
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