1 S = 1000 ms (MS)
1 millisecond = 1/1, 000 seconds (s)
1 second = 1,000,000 microseconds (μs)
1 microsecond = 1/1, 000,000 seconds (s)
1 second = 1,000,000,000 nanoseconds (NS)
1 nanosecond = 1/1, 000,000,000 seconds (s)
1 second = 1,000,000,000,000 second (PS)
1 second = 1/1, 000,000,000,000 seconds (S) 1 S = 1000 ms
1 Ms = 1000us
1us = 1000ns
1ns = 1000 ps
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
7 days = 1 week
365.25 days = 1 year
100 = 1st Century
1 normal sun day = 24 hours 3 minutes 56.555 seconds
1 stellar day = 23 hours 56 minutes 4.091 seconds
1 sun year (year of return) = 365.2422 days
(= 365 days, 5 hours, 48 minutes, 46 seconds)
1 year of the constant star = 365.2564 days
(= 365 days, 6 hours, 9 minutes, 9.5 seconds)
1 yuwangyue = 29.5306 days
1 stellar month = 27.3712 days
1 sun year = 12 sun watching days = 354.36 days
1 second = 0.3 million km
1 minute = 60 seconds
1 minute = 15 minutes
1 hour = 4 minutes
1 hour = 2 hours
1 day = 12 hours
1 weather = 5.0728125 days
Section 1 = 3
1 day = 10 days
October January =
Quarter 1 = Quarter 6
1 year = 4 seasons
1 generation = 10 years
1 to 30 generations
1 discipline = 10 generations
Area
1 square kilometer (km²) = 100 hectares (ha) = 247.1 acres (Acre) = 0.386 square miles (mile2)
1 m² (m2) = 10.764 square feet (ft2)
1 square inch (in2) = 6.452 cm² (cm2)
1 hectare (HA) = 10000 m² (m2) = 2.471 acres (Acre)
1 acre (Acre) = 0.4047 hectares (ha) = 4.047 × 10-3 sq km (km²) = 4047 m² (m2)
1 acre (Acre) = 0.4047 hectares (ha) = 4.047 × 10-3 sq km (km²) = 4047 m² (m2)
1 square foot (ft2) = 0.093 m² (m2)
1 m² (m2) = 10.764 square feet (ft2)
1 Verification Code (yd2) = 0.8361 m² (m2)
1 square mile (mile2) = 2.590 square kilometers (km2)
Volume Change Calculation
1 megali (GI) = 0.118 litre (1) 1 meipin (PT) = 0.473 litre (1)
USD 1 (QT) = 0.946 litre (1) 1 gallon (GAL) = 3.785 litre (1)
1 bucket (BBL) = 0.159 m³ (m3) = 42 gallon (GAL) 1 acre? Feet = 1234 m³ (m3)
1 cubic inch (in3) = 16.3871 cm³ (cm3) 1 gallon (GAL) = 4.546 litre (1)
1 billion cubic feet (BCF) = 28.317 million cubic meters (m3) 1 trillion cubic feet (TCF) = 28.317 billion cubic meters (m3)
1 million cubic feet (molap) = 28.317 thousand cubic meters (m3) 1 thousand cubic feet (OLAP) = 28.317 m³ (m3)
1 cubic foot (FT3) = 0.0283 m³ (m3) = 28.317 litre (liter)
1 m³ (m3) = 1000 litre (liter) = 35.315 cubic feet (FT3) = 6.29 barrels (BBL)
Duration Calculation
1 km (Km) = 0.621 miles (mile) 1 m (m) = 3.281 feet (FT) = 1.094 yards (YD)
1 cm (CM) = 0.394 inch (in) 1 inch (in) = 2.54 cm (cm)
1 nautical mile (N mile) = 1.852 km (Km) 1 searches (FM) = 1.829 (m)
1 yard (YD) = 3 feet (FT) 1 pole (RAD) = 16.5 feet (FT)
1 mile (mile) = 1.609 km (Km) 1 feet (FT) = 12 inch (in)
1 mile (mile) = 5280 feet (FT) 1 mile (N mile) = 1.1516 miles (mile)
Quality Calculation
1 long ton = 1.016 tons (t) 1 kg (kg) = 2.205 lbs)
1 lb (LB) = 0.454 kg (kg) [constant balance] 1 oz (OZ) = 28.350 grams (g)
1 short ton (Sh. Ton) = 0.907 tons (t) = 2000 lbs)
1 ton (t) = 1000 kg (kg) = 2205 lbs = 1.102 short tons (Sh. Ton) = 0.984 long tons (long ton)
Password Calculation
1 lb/foot 3 (lb/FT3) = 16.02 kg/meter 3 (kg/m3)
API degree = 141.5/15.5 ℃-131.5
1 lb/gallon (lb/GAL) = 99.776 kg/m 3 (kg/m3)
1 wave us density (B) = 140/15. 5 ℃-130
1 lb/inch 3 (lb/in3) = 27679.9 kg/meter 3 (kg/m3)
1 lb/gallon (lb/GAL) = 119.826 kg/m 3 (kg/m3)
1 lb/(petroleum) bucket (lb/bbl) = 2.853 kg/meter 3 (kg/m3)
1 kg/meter 3 (kg/m3) = 0.001g/centimeter 3 (g/cm3) = 0.0624 lb/foot 3 (lb/FT3)
Calculation of moving Viscosity
1 S (ST) = 10-4 M 2/s (m2/s) = 1 cm 2/s (cm2/s)
1 feet 2/s (ft2/S) = 9.29030 × 10-2 meters 2/s (m2/s)
1 second (CST) = 10-6 meters 2/s (m2/s) = 1mm 2/s (mm2/s)
Dynamic viscosity Calculation
Dynamic viscosity 1 (p) = 0.1 Pa? Seconds (Pa? S) 1 mooring (CP) = 10-3 Pa? Seconds (Pa? S)
1 lb force second/foot 2 (lbf? S/ft2) = 47.8803 Pa? Seconds (Pa? S)
1 kg force second/meter 2 (KGF? S, m2) = 9.80665 Pa? Seconds (Pa? S)
Force Calculation
1 Newton (n) = 0.225 lb (lbf) = 0.102 kg (KGF)
1 kg force (KGF) = 9.81 ox (N)
1 lb (lbf) = 4.45 Newton (n) 1 Dyn (Dyn) = 10-5 Newton (N)
Temperature Change Calculation
K = 5/9 (deg F + 459.67) k = deg C + 273.15
N ℃ = (5/9? N + 32) ° FN ° F = [(n-32) × 5/9] ℃
1 °C F = 5/9 ℃ (temperature difference)
Stress Calculation
Pressure 1 bar = 105 Pa (PA) 1 Dain/centimeter 2 (Dyn/cm2) = 0.1 Pa (PA)
1 Torr = 133.322 Pa (PA) 1mm mercury (mmHg) = 133.322 Pa (PA)
1mm water column (mmh2o) = 9.80665 Pa (PA) 1 Engineering atmospheric pressure = 98.0665 kPa)
1 kPa = 0.145 lbs/inch 2 (PSI) = 0.0102 kg Mbps/cm 2 (kgf/cm2) = 0.0098 atmospheric pressure (ATM)
1 lb force/inch 2 (PSI) = 6.895 kPa (KPA) = 0.0703 kg min/cm 2 (kg/cm2) = 0.0689 Ba (bar)
= 0.068 atmospheric pressure (ATM)
1 physical atmospheric pressure (ATM) = 101.325 kPa (KPA) = 14.696 lbs/inch 2 (PSI) = 1.0333 bar)
Calculation of Heat Transfer Coefficient
1 daughter/meter 2? Time (kcal/m2? H) = 1.16279 w/meter 2 (W/m2)
1 thousand cards/(meters 2? Hour? Deg C) [1 kcal/(m2? H? ℃)] = 1.16279 watt/(meter 2? Kairvin) [W/(m2? K )〕
1 British hot unit/(feet 2? Hour? ° F) [BTU/(ft2? H? F)] = 5.67826 watt/(meter 2? Kairvin) [(W/m2? K )〕
1 meter 2? Hour? ℃/Daughter card (m2? H? ℃/Kcal) = 0.86000 meters 2? Kairvin/WA (m2? K/W)
Heat Transfer Rate Calculation
1 daughter card (meters? Hour? ℃) [Kcal/(m? H? ℃)] = 1.16279 Watts/(meters? Kairvin) [W/(m? K )〕
1 British hot unit/(feet? Hour? ° F) [but/(FT? H? ° F) = 1.7303 watt/(meters? Kairvin) [W/(m? K )〕
Compare hot computing
1 kcal/(kg? ℃) [Kcal/(kg? ℃)] = 1 British hot unit/(LBS? ° F) [BTU/(Lb? ° F )〕
= 4186.8/(kg? Kairvin) [J/(kg? K )〕
Hot Power Conversion Calculation
1 cart (CAL) = 4.1868 cart (j) 1 cart = 4186.75 cart (j)
1 kg force meters (KGF? M) = 9.80665 ears (j)
1 British thermal unit (BTU) = 1055.06 ears (j)
1 KW hours (kW? H) = 3.6 × 106 ears (j)
1 feet lbs (FT? Lbf) = 1.35582 ears (j)
1-meter HP hour (HP? H) = 2.64779 × 106 ears (j)
1 HP hour (ukhp? H) = 2.68452 × 106 ears
1 in-ear monitoring = 0.10204 kg? Meters
= 2.778 × 10-7 KW? Hours
= 3.777x10-7 metric horsepower hour
= 3.723x10-7 imperial horsepower hour
= 2.389x10-4 K card
= 9.48x10-4 English Hot Unit
Conversion Rate
1 Mbps hot unit/hour (BTU/h) = 0.293071 W (W)
1Kg power? Meter/second (KGF? M/S) = 9.80665 Watts (W)
1 card/second (cal/S) = 4.1868 W (w) 1 meter HP = 735.499 W (W)
Speed Calculation
1 mile/hour (mile/h) = 0.44704 meters/second (m/s)
1 feet/second (FT/S) = 0.3048 meters/second (m/s)
Penetration Rate Calculation
1 = 1000 (cm2) = 1 cm² × 9.81
Ground Temperature ladder Calculation
1 °F/100 feet = 1.8 ℃/100 meters (℃/m)
1 ℃/km = 2.9 deg F/mile (deg F/mile) = 0.055 deg F/100 feet (deg F/ft)
Change of oil and gas production volume
1 bucket (BBL) = 0.14 tons (t) (crude oil, global average)
1 trillion cubic feet/day (tcfd) = 28.32 billion cubic meters/day (m3/d) = 10.336 trillion cubic meters/year (m3/)
1 billion cubic feet/day (bcfd) = 0.02832 billion cubic meters/day (m3/d) = 10.336 billion cubic meters/year (m3/)
1 million cubic feet/day (mmcfd) = 28.32 thousand cubic meters/day (m3/d) = 10.3355 million cubic meters/year (m3/)
28.32 m³ cubic feet/day (mcfd) = 10.336 thousand/day (m3/d) = cubic meters/year (m3/)
1 bucket/day (BPD) = 50 tons/year (t/a) (crude oil, global average)
1 ton (t) = 7.3 barrels (BBL) (crude oil, global average)
Gas/oil ratio calculation
1 cubic foot/bucket (cuft/bbl) = 0.2067 m³/ton (m3/t)
Hot Value Calculation
1 barrel crude oil = 5.8x106 British thermal unit (BTU)
1 ton coal = 2.406X107 British thermal unit (BTU)
1 m³ Moisture = 3.909x104 thermal unit (BTU)
1 KW h water and electricity = 1.0235 × 104 Yingge (BTU)
1 m³ dry gas = 3.577x104 British thermal unit (BTU) (the above is the average calorific value of the United States in 1990)
(Source: US National Bureau of Standards)
Hot computing
1 barrel of crude oil = 5800 cubic feet of natural gas (calculated based on average calorific value)
1 m³ natural gas = 1.3300 kg standard coal
1 kg crude oil = 1.4286 kg standard coal